28931120

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{859}}^1$

素因数の和:1293

約数の個数: 40

約数和(自身を含む): 67503120

約数和(自身を除く): 38572000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 859, 1684, 1718, 2105, 3368, 3436, 4210, 4295, 6736, 6872, 8420, 8590, 13744, 16840, 17180, 33680, 34360, 68720, 361639, 723278, 1446556, 1808195, 2893112, 3616390, 5786224, 7232780, 14465560, 28931120]

約数ペア:

[(1, 28931120), (2, 14465560), (4, 7232780), (5, 5786224), (8, 3616390), (10, 2893112), (16, 1808195), (20, 1446556), (40, 723278), (80, 361639), (421, 68720), (842, 34360), (859, 33680), (1684, 17180), (1718, 16840), (2105, 13744), (3368, 8590), (3436, 8420), (4210, 6872), (4295, 6736)]