18980625

素因数分解:

$3^1\times 5^4\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:267

約数の個数: 40

約数和(自身を含む): 32389632

約数和(自身を除く): 13409007

約数列:

[1, 3, 5, 15, 25, 53, 75, 125, 159, 191, 265, 375, 573, 625, 795, 955, 1325, 1875, 2865, 3975, 4775, 6625, 10123, 14325, 19875, 23875, 30369, 33125, 50615, 71625, 99375, 119375, 151845, 253075, 358125, 759225, 1265375, 3796125, 6326875, 18980625]

約数ペア:

[(1, 18980625), (3, 6326875), (5, 3796125), (15, 1265375), (25, 759225), (53, 358125), (75, 253075), (125, 151845), (159, 119375), (191, 99375), (265, 71625), (375, 50615), (573, 33125), (625, 30369), (795, 23875), (955, 19875), (1325, 14325), (1875, 10123), (2865, 6625), (3975, 4775)]