123500240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1279}}^1$

素因数の和:1380

約数の個数: 80

約数和(自身を含む): 308551680

約数和(自身を除く): 185051440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 272, 284, 340, 355, 568, 680, 710, 1136, 1207, 1279, 1360, 1420, 2414, 2558, 2840, 4828, 5116, 5680, 6035, 6395, 9656, 10232, 12070, 12790, 19312, 20464, 21743, 24140, 25580, 43486, 48280, 51160, 86972, 90809, 96560, 102320, 108715, 173944, 181618, 217430, 347888, 363236, 434860, 454045, 726472, 869720, 908090, 1452944, 1543753, 1739440, 1816180, 3087506, 3632360, 6175012, 7264720, 7718765, 12350024, 15437530, 24700048, 30875060, 61750120, 123500240]

約数ペア:

[(1, 123500240), (2, 61750120), (4, 30875060), (5, 24700048), (8, 15437530), (10, 12350024), (16, 7718765), (17, 7264720), (20, 6175012), (34, 3632360), (40, 3087506), (68, 1816180), (71, 1739440), (80, 1543753), (85, 1452944), (136, 908090), (142, 869720), (170, 726472), (272, 454045), (284, 434860), (340, 363236), (355, 347888), (568, 217430), (680, 181618), (710, 173944), (1136, 108715), (1207, 102320), (1279, 96560), (1360, 90809), (1420, 86972), (2414, 51160), (2558, 48280), (2840, 43486), (4828, 25580), (5116, 24140), (5680, 21743), (6035, 20464), (6395, 19312), (9656, 12790), (10232, 12070)]