287738984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67481}}^1$

素因数の和:67541

約数の個数: 32

約数和(自身を含む): 595191240

約数和(自身を除く): 307452256

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 67481, 134962, 269924, 539848, 877253, 1754506, 2766721, 3509012, 5533442, 7018024, 11066884, 22133768, 35967373, 71934746, 143869492, 287738984]

約数ペア:

[(1, 287738984), (2, 143869492), (4, 71934746), (8, 35967373), (13, 22133768), (26, 11066884), (41, 7018024), (52, 5533442), (82, 3509012), (104, 2766721), (164, 1754506), (328, 877253), (533, 539848), (1066, 269924), (2132, 134962), (4264, 67481)]