64617968

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{719}}^1$

素因数の和:905

約数の個数: 40

約数和(自身を含む): 129366720

約数和(自身を除く): 64748752

約数列:

[1, 2, 4, 8, 16, 41, 82, 137, 164, 274, 328, 548, 656, 719, 1096, 1438, 2192, 2876, 5617, 5752, 11234, 11504, 22468, 29479, 44936, 58958, 89872, 98503, 117916, 197006, 235832, 394012, 471664, 788024, 1576048, 4038623, 8077246, 16154492, 32308984, 64617968]

約数ペア:

[(1, 64617968), (2, 32308984), (4, 16154492), (8, 8077246), (16, 4038623), (41, 1576048), (82, 788024), (137, 471664), (164, 394012), (274, 235832), (328, 197006), (548, 117916), (656, 98503), (719, 89872), (1096, 58958), (1438, 44936), (2192, 29479), (2876, 22468), (5617, 11504), (5752, 11234)]