199990980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:215

約数の個数: 288

約数和(自身を含む): 741371904

約数和(自身を除く): 541380924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 67, 69, 70, 84, 90, 92, 103, 105, 115, 126, 134, 138, 140, 161, 180, 201, 206, 207, 210, 230, 252, 268, 276, 309, 315, 322, 335, 345, 402, 412, 414, 420, 460, 469, 483, 515, 603, 618, 630, 644, 670, 690, 721, 804, 805, 828, 927, 938, 966, 1005, 1030, 1035, 1206, 1236, 1260, 1340, 1380, 1407, 1442, 1449, 1541, 1545, 1610, 1854, 1876, 1932, 2010, 2060, 2070, 2163, 2345, 2369, 2412, 2415, 2814, 2884, 2898, 3015, 3082, 3090, 3220, 3605, 3708, 4020, 4140, 4221, 4326, 4623, 4635, 4690, 4738, 4830, 5628, 5796, 6030, 6164, 6180, 6489, 6901, 7035, 7107, 7210, 7245, 7705, 8442, 8652, 9246, 9270, 9380, 9476, 9660, 10787, 10815, 11845, 12060, 12978, 13802, 13869, 14070, 14214, 14420, 14490, 15410, 16583, 16884, 18492, 18540, 20703, 21105, 21321, 21574, 21630, 23115, 23690, 25956, 27604, 27738, 28140, 28428, 28980, 30820, 32361, 32445, 33166, 34505, 35535, 41406, 42210, 42642, 43148, 43260, 46230, 47380, 48307, 49749, 53935, 55476, 62109, 64722, 64890, 66332, 69010, 69345, 71070, 82812, 82915, 84420, 85284, 92460, 96614, 97083, 99498, 103515, 106605, 107870, 124218, 129444, 129780, 138020, 138690, 142140, 144921, 149247, 158723, 161805, 165830, 193228, 194166, 198996, 207030, 213210, 215740, 241535, 248436, 248745, 277380, 289842, 298494, 310545, 317446, 323610, 331660, 388332, 414060, 426420, 434763, 476169, 483070, 485415, 497490, 579684, 596988, 621090, 634892, 647220, 724605, 746235, 793615, 869526, 952338, 966140, 970830, 994980, 1111061, 1242180, 1428507, 1449210, 1492470, 1587230, 1739052, 1904676, 1941660, 2173815, 2222122, 2380845, 2857014, 2898420, 2984940, 3174460, 3333183, 4347630, 4444244, 4761690, 5555305, 5714028, 6666366, 7142535, 8695260, 9523380, 9999549, 11110610, 13332732, 14285070, 16665915, 19999098, 22221220, 28570140, 33331830, 39998196, 49997745, 66663660, 99995490, 199990980]

約数ペア:

[(1, 199990980), (2, 99995490), (3, 66663660), (4, 49997745), (5, 39998196), (6, 33331830), (7, 28570140), (9, 22221220), (10, 19999098), (12, 16665915), (14, 14285070), (15, 13332732), (18, 11110610), (20, 9999549), (21, 9523380), (23, 8695260), (28, 7142535), (30, 6666366), (35, 5714028), (36, 5555305), (42, 4761690), (45, 4444244), (46, 4347630), (60, 3333183), (63, 3174460), (67, 2984940), (69, 2898420), (70, 2857014), (84, 2380845), (90, 2222122), (92, 2173815), (103, 1941660), (105, 1904676), (115, 1739052), (126, 1587230), (134, 1492470), (138, 1449210), (140, 1428507), (161, 1242180), (180, 1111061), (201, 994980), (206, 970830), (207, 966140), (210, 952338), (230, 869526), (252, 793615), (268, 746235), (276, 724605), (309, 647220), (315, 634892), (322, 621090), (335, 596988), (345, 579684), (402, 497490), (412, 485415), (414, 483070), (420, 476169), (460, 434763), (469, 426420), (483, 414060), (515, 388332), (603, 331660), (618, 323610), (630, 317446), (644, 310545), (670, 298494), (690, 289842), (721, 277380), (804, 248745), (805, 248436), (828, 241535), (927, 215740), (938, 213210), (966, 207030), (1005, 198996), (1030, 194166), (1035, 193228), (1206, 165830), (1236, 161805), (1260, 158723), (1340, 149247), (1380, 144921), (1407, 142140), (1442, 138690), (1449, 138020), (1541, 129780), (1545, 129444), (1610, 124218), (1854, 107870), (1876, 106605), (1932, 103515), (2010, 99498), (2060, 97083), (2070, 96614), (2163, 92460), (2345, 85284), (2369, 84420), (2412, 82915), (2415, 82812), (2814, 71070), (2884, 69345), (2898, 69010), (3015, 66332), (3082, 64890), (3090, 64722), (3220, 62109), (3605, 55476), (3708, 53935), (4020, 49749), (4140, 48307), (4221, 47380), (4326, 46230), (4623, 43260), (4635, 43148), (4690, 42642), (4738, 42210), (4830, 41406), (5628, 35535), (5796, 34505), (6030, 33166), (6164, 32445), (6180, 32361), (6489, 30820), (6901, 28980), (7035, 28428), (7107, 28140), (7210, 27738), (7245, 27604), (7705, 25956), (8442, 23690), (8652, 23115), (9246, 21630), (9270, 21574), (9380, 21321), (9476, 21105), (9660, 20703), (10787, 18540), (10815, 18492), (11845, 16884), (12060, 16583), (12978, 15410), (13802, 14490), (13869, 14420), (14070, 14214)]