28982960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:342

約数の個数: 80

約数和(自身を含む): 72397152

約数和(自身を除く): 43414192

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 101, 136, 170, 202, 211, 272, 340, 404, 422, 505, 680, 808, 844, 1010, 1055, 1360, 1616, 1688, 1717, 2020, 2110, 3376, 3434, 3587, 4040, 4220, 6868, 7174, 8080, 8440, 8585, 13736, 14348, 16880, 17170, 17935, 21311, 27472, 28696, 34340, 35870, 42622, 57392, 68680, 71740, 85244, 106555, 137360, 143480, 170488, 213110, 286960, 340976, 362287, 426220, 724574, 852440, 1449148, 1704880, 1811435, 2898296, 3622870, 5796592, 7245740, 14491480, 28982960]

約数ペア:

[(1, 28982960), (2, 14491480), (4, 7245740), (5, 5796592), (8, 3622870), (10, 2898296), (16, 1811435), (17, 1704880), (20, 1449148), (34, 852440), (40, 724574), (68, 426220), (80, 362287), (85, 340976), (101, 286960), (136, 213110), (170, 170488), (202, 143480), (211, 137360), (272, 106555), (340, 85244), (404, 71740), (422, 68680), (505, 57392), (680, 42622), (808, 35870), (844, 34340), (1010, 28696), (1055, 27472), (1360, 21311), (1616, 17935), (1688, 17170), (1717, 16880), (2020, 14348), (2110, 13736), (3376, 8585), (3434, 8440), (3587, 8080), (4040, 7174), (4220, 6868)]