221100625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:515

約数の個数: 40

約数和(自身を含む): 298279520

約数和(自身を除く): 77178895

約数列:

[1, 5, 19, 25, 43, 95, 125, 215, 433, 475, 625, 817, 1075, 2165, 2375, 4085, 5375, 8227, 10825, 11875, 18619, 20425, 26875, 41135, 54125, 93095, 102125, 205675, 270625, 353761, 465475, 510625, 1028375, 1768805, 2327375, 5141875, 8844025, 11636875, 44220125, 221100625]

約数ペア:

[(1, 221100625), (5, 44220125), (19, 11636875), (25, 8844025), (43, 5141875), (95, 2327375), (125, 1768805), (215, 1028375), (433, 510625), (475, 465475), (625, 353761), (817, 270625), (1075, 205675), (2165, 102125), (2375, 93095), (4085, 54125), (5375, 41135), (8227, 26875), (10825, 20425), (11875, 18619)]