72457400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 180992880

約数和(自身を除く): 108535480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 101, 136, 170, 200, 202, 211, 340, 404, 422, 425, 505, 680, 808, 844, 850, 1010, 1055, 1688, 1700, 1717, 2020, 2110, 2525, 3400, 3434, 3587, 4040, 4220, 5050, 5275, 6868, 7174, 8440, 8585, 10100, 10550, 13736, 14348, 17170, 17935, 20200, 21100, 21311, 28696, 34340, 35870, 42200, 42622, 42925, 68680, 71740, 85244, 85850, 89675, 106555, 143480, 170488, 171700, 179350, 213110, 343400, 358700, 362287, 426220, 532775, 717400, 724574, 852440, 1065550, 1449148, 1811435, 2131100, 2898296, 3622870, 4262200, 7245740, 9057175, 14491480, 18114350, 36228700, 72457400]

約数ペア:

[(1, 72457400), (2, 36228700), (4, 18114350), (5, 14491480), (8, 9057175), (10, 7245740), (17, 4262200), (20, 3622870), (25, 2898296), (34, 2131100), (40, 1811435), (50, 1449148), (68, 1065550), (85, 852440), (100, 724574), (101, 717400), (136, 532775), (170, 426220), (200, 362287), (202, 358700), (211, 343400), (340, 213110), (404, 179350), (422, 171700), (425, 170488), (505, 143480), (680, 106555), (808, 89675), (844, 85850), (850, 85244), (1010, 71740), (1055, 68680), (1688, 42925), (1700, 42622), (1717, 42200), (2020, 35870), (2110, 34340), (2525, 28696), (3400, 21311), (3434, 21100), (3587, 20200), (4040, 17935), (4220, 17170), (5050, 14348), (5275, 13736), (6868, 10550), (7174, 10100), (8440, 8585)]