664316620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{1301}}^1$

素因数の和:1543

約数の個数: 72

約数和(自身を含む): 1541870064

約数和(自身を除く): 877553444

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 211, 220, 242, 422, 484, 605, 844, 1055, 1210, 1301, 2110, 2321, 2420, 2602, 4220, 4642, 5204, 6505, 9284, 11605, 13010, 14311, 23210, 25531, 26020, 28622, 46420, 51062, 57244, 71555, 102124, 127655, 143110, 157421, 255310, 274511, 286220, 314842, 510620, 549022, 629684, 787105, 1098044, 1372555, 1574210, 2745110, 3019621, 3148420, 5490220, 6039242, 12078484, 15098105, 30196210, 33215831, 60392420, 66431662, 132863324, 166079155, 332158310, 664316620]

約数ペア:

[(1, 664316620), (2, 332158310), (4, 166079155), (5, 132863324), (10, 66431662), (11, 60392420), (20, 33215831), (22, 30196210), (44, 15098105), (55, 12078484), (110, 6039242), (121, 5490220), (211, 3148420), (220, 3019621), (242, 2745110), (422, 1574210), (484, 1372555), (605, 1098044), (844, 787105), (1055, 629684), (1210, 549022), (1301, 510620), (2110, 314842), (2321, 286220), (2420, 274511), (2602, 255310), (4220, 157421), (4642, 143110), (5204, 127655), (6505, 102124), (9284, 71555), (11605, 57244), (13010, 51062), (14311, 46420), (23210, 28622), (25531, 26020)]