47227780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 102090240

約数和(自身を除く): 54862460

約数列:

[1, 2, 4, 5, 10, 20, 71, 79, 142, 158, 284, 316, 355, 395, 421, 710, 790, 842, 1420, 1580, 1684, 2105, 4210, 5609, 8420, 11218, 22436, 28045, 29891, 33259, 56090, 59782, 66518, 112180, 119564, 133036, 149455, 166295, 298910, 332590, 597820, 665180, 2361389, 4722778, 9445556, 11806945, 23613890, 47227780]

約数ペア:

[(1, 47227780), (2, 23613890), (4, 11806945), (5, 9445556), (10, 4722778), (20, 2361389), (71, 665180), (79, 597820), (142, 332590), (158, 298910), (284, 166295), (316, 149455), (355, 133036), (395, 119564), (421, 112180), (710, 66518), (790, 59782), (842, 56090), (1420, 33259), (1580, 29891), (1684, 28045), (2105, 22436), (4210, 11218), (5609, 8420)]