1001020120

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{59443}}^1$

素因数の和:59875

約数の個数: 32

約数和(自身を含む): 2257683120

約数和(自身を除く): 1256663000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 59443, 118886, 237772, 297215, 475544, 594430, 1188860, 2377720, 25025503, 50051006, 100102012, 125127515, 200204024, 250255030, 500510060, 1001020120]

約数ペア:

[(1, 1001020120), (2, 500510060), (4, 250255030), (5, 200204024), (8, 125127515), (10, 100102012), (20, 50051006), (40, 25025503), (421, 2377720), (842, 1188860), (1684, 594430), (2105, 475544), (3368, 297215), (4210, 237772), (8420, 118886), (16840, 59443)]