20830950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:431

約数の個数: 144

約数和(自身を含む): 67897440

約数和(自身を除く): 47066490

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 25, 30, 34, 35, 42, 45, 50, 51, 63, 70, 75, 85, 90, 102, 105, 119, 126, 150, 153, 170, 175, 210, 225, 238, 255, 306, 315, 350, 357, 389, 425, 450, 510, 525, 595, 630, 714, 765, 778, 850, 1050, 1071, 1167, 1190, 1275, 1530, 1575, 1785, 1945, 2142, 2334, 2550, 2723, 2975, 3150, 3501, 3570, 3825, 3890, 5355, 5446, 5835, 5950, 6613, 7002, 7650, 8169, 8925, 9725, 10710, 11670, 13226, 13615, 16338, 17505, 17850, 19450, 19839, 24507, 26775, 27230, 29175, 33065, 35010, 39678, 40845, 46291, 49014, 53550, 58350, 59517, 66130, 68075, 81690, 87525, 92582, 99195, 119034, 122535, 136150, 138873, 165325, 175050, 198390, 204225, 231455, 245070, 277746, 297585, 330650, 408450, 416619, 462910, 495975, 595170, 612675, 694365, 833238, 991950, 1157275, 1225350, 1388730, 1487925, 2083095, 2314550, 2975850, 3471825, 4166190, 6943650, 10415475, 20830950]

約数ペア:

[(1, 20830950), (2, 10415475), (3, 6943650), (5, 4166190), (6, 3471825), (7, 2975850), (9, 2314550), (10, 2083095), (14, 1487925), (15, 1388730), (17, 1225350), (18, 1157275), (21, 991950), (25, 833238), (30, 694365), (34, 612675), (35, 595170), (42, 495975), (45, 462910), (50, 416619), (51, 408450), (63, 330650), (70, 297585), (75, 277746), (85, 245070), (90, 231455), (102, 204225), (105, 198390), (119, 175050), (126, 165325), (150, 138873), (153, 136150), (170, 122535), (175, 119034), (210, 99195), (225, 92582), (238, 87525), (255, 81690), (306, 68075), (315, 66130), (350, 59517), (357, 58350), (389, 53550), (425, 49014), (450, 46291), (510, 40845), (525, 39678), (595, 35010), (630, 33065), (714, 29175), (765, 27230), (778, 26775), (850, 24507), (1050, 19839), (1071, 19450), (1167, 17850), (1190, 17505), (1275, 16338), (1530, 13615), (1575, 13226), (1785, 11670), (1945, 10710), (2142, 9725), (2334, 8925), (2550, 8169), (2723, 7650), (2975, 7002), (3150, 6613), (3501, 5950), (3570, 5835), (3825, 5446), (3890, 5355)]