86857900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:595

約数の個数: 72

約数和(自身を含む): 198581040

約数和(自身を除く): 111723140

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 61, 100, 116, 122, 145, 244, 290, 305, 491, 580, 610, 725, 982, 1220, 1450, 1525, 1769, 1964, 2455, 2900, 3050, 3538, 4910, 6100, 7076, 8845, 9820, 12275, 14239, 17690, 24550, 28478, 29951, 35380, 44225, 49100, 56956, 59902, 71195, 88450, 119804, 142390, 149755, 176900, 284780, 299510, 355975, 599020, 711950, 748775, 868579, 1423900, 1497550, 1737158, 2995100, 3474316, 4342895, 8685790, 17371580, 21714475, 43428950, 86857900]

約数ペア:

[(1, 86857900), (2, 43428950), (4, 21714475), (5, 17371580), (10, 8685790), (20, 4342895), (25, 3474316), (29, 2995100), (50, 1737158), (58, 1497550), (61, 1423900), (100, 868579), (116, 748775), (122, 711950), (145, 599020), (244, 355975), (290, 299510), (305, 284780), (491, 176900), (580, 149755), (610, 142390), (725, 119804), (982, 88450), (1220, 71195), (1450, 59902), (1525, 56956), (1769, 49100), (1964, 44225), (2455, 35380), (2900, 29951), (3050, 28478), (3538, 24550), (4910, 17690), (6100, 14239), (7076, 12275), (8845, 9820)]