8668220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 21019824

約数和(自身を除く): 12351604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 41, 44, 55, 62, 82, 110, 124, 155, 164, 205, 220, 310, 341, 410, 451, 620, 682, 820, 902, 961, 1271, 1364, 1705, 1804, 1922, 2255, 2542, 3410, 3844, 4510, 4805, 5084, 6355, 6820, 9020, 9610, 10571, 12710, 13981, 19220, 21142, 25420, 27962, 39401, 42284, 52855, 55924, 69905, 78802, 105710, 139810, 157604, 197005, 211420, 279620, 394010, 433411, 788020, 866822, 1733644, 2167055, 4334110, 8668220]

約数ペア:

[(1, 8668220), (2, 4334110), (4, 2167055), (5, 1733644), (10, 866822), (11, 788020), (20, 433411), (22, 394010), (31, 279620), (41, 211420), (44, 197005), (55, 157604), (62, 139810), (82, 105710), (110, 78802), (124, 69905), (155, 55924), (164, 52855), (205, 42284), (220, 39401), (310, 27962), (341, 25420), (410, 21142), (451, 19220), (620, 13981), (682, 12710), (820, 10571), (902, 9610), (961, 9020), (1271, 6820), (1364, 6355), (1705, 5084), (1804, 4805), (1922, 4510), (2255, 3844), (2542, 3410)]