20381400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1$

素因数の和:115

約数の個数: 216

約数和(自身を含む): 75223980

約数和(自身を除く): 54842580

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 25, 26, 30, 36, 39, 40, 45, 50, 52, 60, 65, 67, 72, 75, 78, 90, 100, 104, 117, 120, 130, 134, 150, 156, 169, 180, 195, 200, 201, 225, 234, 260, 268, 300, 312, 325, 335, 338, 360, 390, 402, 450, 468, 507, 520, 536, 585, 600, 603, 650, 670, 676, 780, 804, 845, 871, 900, 936, 975, 1005, 1014, 1170, 1206, 1300, 1340, 1352, 1521, 1560, 1608, 1675, 1690, 1742, 1800, 1950, 2010, 2028, 2340, 2412, 2535, 2600, 2613, 2680, 2925, 3015, 3042, 3350, 3380, 3484, 3900, 4020, 4056, 4225, 4355, 4680, 4824, 5025, 5070, 5226, 5850, 6030, 6084, 6700, 6760, 6968, 7605, 7800, 7839, 8040, 8450, 8710, 10050, 10140, 10452, 11323, 11700, 12060, 12168, 12675, 13065, 13400, 15075, 15210, 15678, 16900, 17420, 20100, 20280, 20904, 21775, 22646, 23400, 24120, 25350, 26130, 30150, 30420, 31356, 33800, 33969, 34840, 38025, 39195, 40200, 43550, 45292, 50700, 52260, 56615, 60300, 60840, 62712, 65325, 67938, 76050, 78390, 87100, 90584, 101400, 101907, 104520, 113230, 120600, 130650, 135876, 152100, 156780, 169845, 174200, 195975, 203814, 226460, 261300, 271752, 283075, 304200, 313560, 339690, 391950, 407628, 452920, 509535, 522600, 566150, 679380, 783900, 815256, 849225, 1019070, 1132300, 1358760, 1567800, 1698450, 2038140, 2264600, 2547675, 3396900, 4076280, 5095350, 6793800, 10190700, 20381400]

約数ペア:

[(1, 20381400), (2, 10190700), (3, 6793800), (4, 5095350), (5, 4076280), (6, 3396900), (8, 2547675), (9, 2264600), (10, 2038140), (12, 1698450), (13, 1567800), (15, 1358760), (18, 1132300), (20, 1019070), (24, 849225), (25, 815256), (26, 783900), (30, 679380), (36, 566150), (39, 522600), (40, 509535), (45, 452920), (50, 407628), (52, 391950), (60, 339690), (65, 313560), (67, 304200), (72, 283075), (75, 271752), (78, 261300), (90, 226460), (100, 203814), (104, 195975), (117, 174200), (120, 169845), (130, 156780), (134, 152100), (150, 135876), (156, 130650), (169, 120600), (180, 113230), (195, 104520), (200, 101907), (201, 101400), (225, 90584), (234, 87100), (260, 78390), (268, 76050), (300, 67938), (312, 65325), (325, 62712), (335, 60840), (338, 60300), (360, 56615), (390, 52260), (402, 50700), (450, 45292), (468, 43550), (507, 40200), (520, 39195), (536, 38025), (585, 34840), (600, 33969), (603, 33800), (650, 31356), (670, 30420), (676, 30150), (780, 26130), (804, 25350), (845, 24120), (871, 23400), (900, 22646), (936, 21775), (975, 20904), (1005, 20280), (1014, 20100), (1170, 17420), (1206, 16900), (1300, 15678), (1340, 15210), (1352, 15075), (1521, 13400), (1560, 13065), (1608, 12675), (1675, 12168), (1690, 12060), (1742, 11700), (1800, 11323), (1950, 10452), (2010, 10140), (2028, 10050), (2340, 8710), (2412, 8450), (2535, 8040), (2600, 7839), (2613, 7800), (2680, 7605), (2925, 6968), (3015, 6760), (3042, 6700), (3350, 6084), (3380, 6030), (3484, 5850), (3900, 5226), (4020, 5070), (4056, 5025), (4225, 4824), (4355, 4680)]