20020528

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5987}}^1$

素因数の和:6025

約数の個数: 40

約数和(自身を含む): 44550720

約数和(自身を除く): 24530192

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 5987, 11974, 23948, 47896, 65857, 95792, 113753, 131714, 227506, 263428, 455012, 526856, 910024, 1053712, 1251283, 1820048, 2502566, 5005132, 10010264, 20020528]

約数ペア:

[(1, 20020528), (2, 10010264), (4, 5005132), (8, 2502566), (11, 1820048), (16, 1251283), (19, 1053712), (22, 910024), (38, 526856), (44, 455012), (76, 263428), (88, 227506), (152, 131714), (176, 113753), (209, 95792), (304, 65857), (418, 47896), (836, 23948), (1672, 11974), (3344, 5987)]