245718125

素因数分解:

$5^4\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:327

約数の個数: 40

約数和(自身を含む): 323296512

約数和(自身を除く): 77578387

約数列:

[1, 5, 25, 41, 43, 125, 205, 215, 223, 625, 1025, 1075, 1115, 1763, 5125, 5375, 5575, 8815, 9143, 9589, 25625, 26875, 27875, 44075, 45715, 47945, 139375, 220375, 228575, 239725, 393149, 1101875, 1142875, 1198625, 1965745, 5714375, 5993125, 9828725, 49143625, 245718125]

約数ペア:

[(1, 245718125), (5, 49143625), (25, 9828725), (41, 5993125), (43, 5714375), (125, 1965745), (205, 1198625), (215, 1142875), (223, 1101875), (625, 393149), (1025, 239725), (1075, 228575), (1115, 220375), (1763, 139375), (5125, 47945), (5375, 45715), (5575, 44075), (8815, 27875), (9143, 26875), (9589, 25625)]