165721556

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41389}}^1$

素因数の和:41424

約数の個数: 48

約数和(自身を含む): 389397120

約数和(自身を除く): 223675564

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 41389, 82778, 165556, 289723, 455279, 538057, 579446, 910558, 1076114, 1158892, 1821116, 2152228, 3186953, 3766399, 5918627, 6373906, 7532798, 11837254, 12747812, 15065596, 23674508, 41430389, 82860778, 165721556]

約数ペア:

[(1, 165721556), (2, 82860778), (4, 41430389), (7, 23674508), (11, 15065596), (13, 12747812), (14, 11837254), (22, 7532798), (26, 6373906), (28, 5918627), (44, 3766399), (52, 3186953), (77, 2152228), (91, 1821116), (143, 1158892), (154, 1076114), (182, 910558), (286, 579446), (308, 538057), (364, 455279), (572, 289723), (1001, 165556), (2002, 82778), (4004, 41389)]