18151890625

素因数分解:

$5^6\times {\mathrm{11}}^2\times {\mathrm{9601}}^1$

素因数の和:9653

約数の個数: 42

約数和(自身を含む): 24942376046

約数和(自身を除く): 6790485421

約数列:

[1, 5, 11, 25, 55, 121, 125, 275, 605, 625, 1375, 3025, 3125, 6875, 9601, 15125, 15625, 34375, 48005, 75625, 105611, 171875, 240025, 378125, 528055, 1161721, 1200125, 1890625, 2640275, 5808605, 6000625, 13201375, 29043025, 30003125, 66006875, 145215125, 150015625, 330034375, 726075625, 1650171875, 3630378125, 18151890625]

約数ペア:

[(1, 18151890625), (5, 3630378125), (11, 1650171875), (25, 726075625), (55, 330034375), (121, 150015625), (125, 145215125), (275, 66006875), (605, 30003125), (625, 29043025), (1375, 13201375), (3025, 6000625), (3125, 5808605), (6875, 2640275), (9601, 1890625), (15125, 1200125), (15625, 1161721), (34375, 528055), (48005, 378125), (75625, 240025), (105611, 171875)]