640592986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{6961}}^1$

素因数の和:7110

約数の個数: 32

約数和(自身を含む): 1082730240

約数和(自身を除く): 442137254

約数列:

[1, 2, 11, 22, 47, 89, 94, 178, 517, 979, 1034, 1958, 4183, 6961, 8366, 13922, 46013, 76571, 92026, 153142, 327167, 619529, 654334, 1239058, 3598837, 6814819, 7197674, 13629638, 29117863, 58235726, 320296493, 640592986]

約数ペア:

[(1, 640592986), (2, 320296493), (11, 58235726), (22, 29117863), (47, 13629638), (89, 7197674), (94, 6814819), (178, 3598837), (517, 1239058), (979, 654334), (1034, 619529), (1958, 327167), (4183, 153142), (6961, 92026), (8366, 76571), (13922, 46013)]