20482020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8753}}^1$

素因数の和:8781

約数の個数: 72

約数和(自身を含む): 66915576

約数和(自身を除く): 46433556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8753, 17506, 26259, 35012, 43765, 52518, 78777, 87530, 105036, 113789, 131295, 157554, 175060, 227578, 262590, 315108, 341367, 393885, 455156, 525180, 568945, 682734, 787770, 1024101, 1137890, 1365468, 1575540, 1706835, 2048202, 2275780, 3413670, 4096404, 5120505, 6827340, 10241010, 20482020]

約数ペア:

[(1, 20482020), (2, 10241010), (3, 6827340), (4, 5120505), (5, 4096404), (6, 3413670), (9, 2275780), (10, 2048202), (12, 1706835), (13, 1575540), (15, 1365468), (18, 1137890), (20, 1024101), (26, 787770), (30, 682734), (36, 568945), (39, 525180), (45, 455156), (52, 393885), (60, 341367), (65, 315108), (78, 262590), (90, 227578), (117, 175060), (130, 157554), (156, 131295), (180, 113789), (195, 105036), (234, 87530), (260, 78777), (390, 52518), (468, 43765), (585, 35012), (780, 26259), (1170, 17506), (2340, 8753)]