89142020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 216760320

約数和(自身を除く): 127618300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 79, 92, 110, 115, 158, 220, 223, 230, 253, 316, 395, 446, 460, 506, 790, 869, 892, 1012, 1115, 1265, 1580, 1738, 1817, 2230, 2453, 2530, 3476, 3634, 4345, 4460, 4906, 5060, 5129, 7268, 8690, 9085, 9812, 10258, 12265, 17380, 17617, 18170, 19987, 20516, 24530, 25645, 35234, 36340, 39974, 49060, 51290, 56419, 70468, 79948, 88085, 99935, 102580, 112838, 176170, 193787, 199870, 225676, 282095, 352340, 387574, 399740, 405191, 564190, 775148, 810382, 968935, 1128380, 1620764, 1937870, 2025955, 3875740, 4051910, 4457101, 8103820, 8914202, 17828404, 22285505, 44571010, 89142020]

約数ペア:

[(1, 89142020), (2, 44571010), (4, 22285505), (5, 17828404), (10, 8914202), (11, 8103820), (20, 4457101), (22, 4051910), (23, 3875740), (44, 2025955), (46, 1937870), (55, 1620764), (79, 1128380), (92, 968935), (110, 810382), (115, 775148), (158, 564190), (220, 405191), (223, 399740), (230, 387574), (253, 352340), (316, 282095), (395, 225676), (446, 199870), (460, 193787), (506, 176170), (790, 112838), (869, 102580), (892, 99935), (1012, 88085), (1115, 79948), (1265, 70468), (1580, 56419), (1738, 51290), (1817, 49060), (2230, 39974), (2453, 36340), (2530, 35234), (3476, 25645), (3634, 24530), (4345, 20516), (4460, 19987), (4906, 18170), (5060, 17617), (5129, 17380), (7268, 12265), (8690, 10258), (9085, 9812)]