20022641008

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{397}}^1\times {\mathrm{39901}}^1$

素因数の和:40385

約数の個数: 40

約数和(自身を含む): 39384870080

約数和(自身を除く): 19362229072

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 397, 632, 794, 1264, 1588, 3176, 6352, 31363, 39901, 62726, 79802, 125452, 159604, 250904, 319208, 501808, 638416, 3152179, 6304358, 12608716, 15840697, 25217432, 31681394, 50434864, 63362788, 126725576, 253451152, 1251415063, 2502830126, 5005660252, 10011320504, 20022641008]

約数ペア:

[(1, 20022641008), (2, 10011320504), (4, 5005660252), (8, 2502830126), (16, 1251415063), (79, 253451152), (158, 126725576), (316, 63362788), (397, 50434864), (632, 31681394), (794, 25217432), (1264, 15840697), (1588, 12608716), (3176, 6304358), (6352, 3152179), (31363, 638416), (39901, 501808), (62726, 319208), (79802, 250904), (125452, 159604)]