255644240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1543}}^1$

素因数の和:1684

約数の個数: 80

約数和(自身を含む): 631804800

約数和(自身を除く): 376160560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 109, 152, 190, 218, 304, 380, 436, 545, 760, 872, 1090, 1520, 1543, 1744, 2071, 2180, 3086, 4142, 4360, 6172, 7715, 8284, 8720, 10355, 12344, 15430, 16568, 20710, 24688, 29317, 30860, 33136, 41420, 58634, 61720, 82840, 117268, 123440, 146585, 165680, 168187, 234536, 293170, 336374, 469072, 586340, 672748, 840935, 1172680, 1345496, 1681870, 2345360, 2690992, 3195553, 3363740, 6391106, 6727480, 12782212, 13454960, 15977765, 25564424, 31955530, 51128848, 63911060, 127822120, 255644240]

約数ペア:

[(1, 255644240), (2, 127822120), (4, 63911060), (5, 51128848), (8, 31955530), (10, 25564424), (16, 15977765), (19, 13454960), (20, 12782212), (38, 6727480), (40, 6391106), (76, 3363740), (80, 3195553), (95, 2690992), (109, 2345360), (152, 1681870), (190, 1345496), (218, 1172680), (304, 840935), (380, 672748), (436, 586340), (545, 469072), (760, 336374), (872, 293170), (1090, 234536), (1520, 168187), (1543, 165680), (1744, 146585), (2071, 123440), (2180, 117268), (3086, 82840), (4142, 61720), (4360, 58634), (6172, 41420), (7715, 33136), (8284, 30860), (8720, 29317), (10355, 24688), (12344, 20710), (15430, 16568)]