644714785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1\times {\mathrm{1429}}^1$

素因数の和:2089

約数の個数: 32

約数和(自身を含む): 910990080

約数和(自身を除く): 266275295

約数列:

[1, 5, 11, 13, 55, 65, 143, 631, 715, 1429, 3155, 6941, 7145, 8203, 15719, 18577, 34705, 41015, 78595, 90233, 92885, 204347, 451165, 901699, 1021735, 4508495, 9918689, 11722087, 49593445, 58610435, 128942957, 644714785]

約数ペア:

[(1, 644714785), (5, 128942957), (11, 58610435), (13, 49593445), (55, 11722087), (65, 9918689), (143, 4508495), (631, 1021735), (715, 901699), (1429, 451165), (3155, 204347), (6941, 92885), (7145, 90233), (8203, 78595), (15719, 41015), (18577, 34705)]