28741375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{769}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 40360320

約数和(自身を除く): 11618945

約数列:

[1, 5, 13, 23, 25, 65, 115, 125, 299, 325, 575, 769, 1495, 1625, 2875, 3845, 7475, 9997, 17687, 19225, 37375, 49985, 88435, 96125, 229931, 249925, 442175, 1149655, 1249625, 2210875, 5748275, 28741375]

約数ペア:

[(1, 28741375), (5, 5748275), (13, 2210875), (23, 1249625), (25, 1149655), (65, 442175), (115, 249925), (125, 229931), (299, 96125), (325, 88435), (575, 49985), (769, 37375), (1495, 19225), (1625, 17687), (2875, 9997), (3845, 7475)]