2020982800

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{117499}}^1$

素因数の和:117560

約数の個数: 60

約数和(自身を含む): 4968370000

約数和(自身を除く): 2947387200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1720, 2150, 3440, 4300, 8600, 17200, 117499, 234998, 469996, 587495, 939992, 1174990, 1879984, 2349980, 2937475, 4699960, 5052457, 5874950, 9399920, 10104914, 11749900, 20209828, 23499800, 25262285, 40419656, 46999600, 50524570, 80839312, 101049140, 126311425, 202098280, 252622850, 404196560, 505245700, 1010491400, 2020982800]

約数ペア:

[(1, 2020982800), (2, 1010491400), (4, 505245700), (5, 404196560), (8, 252622850), (10, 202098280), (16, 126311425), (20, 101049140), (25, 80839312), (40, 50524570), (43, 46999600), (50, 40419656), (80, 25262285), (86, 23499800), (100, 20209828), (172, 11749900), (200, 10104914), (215, 9399920), (344, 5874950), (400, 5052457), (430, 4699960), (688, 2937475), (860, 2349980), (1075, 1879984), (1720, 1174990), (2150, 939992), (3440, 587495), (4300, 469996), (8600, 234998), (17200, 117499)]