27980810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1151}}^1$

素因数の和:1199

約数の個数: 64

約数和(自身を含む): 62705664

約数和(自身を除く): 34724854

約数列:

[1, 2, 5, 10, 11, 13, 17, 22, 26, 34, 55, 65, 85, 110, 130, 143, 170, 187, 221, 286, 374, 442, 715, 935, 1105, 1151, 1430, 1870, 2210, 2302, 2431, 4862, 5755, 11510, 12155, 12661, 14963, 19567, 24310, 25322, 29926, 39134, 63305, 74815, 97835, 126610, 149630, 164593, 195670, 215237, 254371, 329186, 430474, 508742, 822965, 1076185, 1271855, 1645930, 2152370, 2543710, 2798081, 5596162, 13990405, 27980810]

約数ペア:

[(1, 27980810), (2, 13990405), (5, 5596162), (10, 2798081), (11, 2543710), (13, 2152370), (17, 1645930), (22, 1271855), (26, 1076185), (34, 822965), (55, 508742), (65, 430474), (85, 329186), (110, 254371), (130, 215237), (143, 195670), (170, 164593), (187, 149630), (221, 126610), (286, 97835), (374, 74815), (442, 63305), (715, 39134), (935, 29926), (1105, 25322), (1151, 24310), (1430, 19567), (1870, 14963), (2210, 12661), (2302, 12155), (2431, 11510), (4862, 5755)]