680361.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1889}}^1$

素因数の和:2321

約数の個数: 32

約数和(自身を含む): 71782200

約数和(自身を除く): 39971440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 1889, 2105, 3368, 3778, 4210, 7556, 8420, 9445, 15112, 16840, 18890, 37780, 75560, 795269, 1590538, 3181076, 3976345, 6362152, 7952690, 15905380, 31810760]

約数ペア:

[(1, 31810760), (2, 15905380), (4, 7952690), (5, 6362152), (8, 3976345), (10, 3181076), (20, 1590538), (40, 795269), (421, 75560), (842, 37780), (1684, 18890), (1889, 16840), (2105, 15112), (3368, 9445), (3778, 8420), (4210, 7556)]