78990625

素因数分解:

$5^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 118492416

約数和(自身を除く): 39501791

約数列:

[1, 5, 7, 23, 25, 35, 115, 125, 157, 161, 175, 575, 625, 785, 805, 875, 1099, 2875, 3125, 3611, 3925, 4025, 4375, 5495, 14375, 18055, 19625, 20125, 21875, 25277, 27475, 71875, 90275, 98125, 100625, 126385, 137375, 451375, 490625, 503125, 631925, 686875, 2256875, 3159625, 3434375, 11284375, 15798125, 78990625]

約数ペア:

[(1, 78990625), (5, 15798125), (7, 11284375), (23, 3434375), (25, 3159625), (35, 2256875), (115, 686875), (125, 631925), (157, 503125), (161, 490625), (175, 451375), (575, 137375), (625, 126385), (785, 100625), (805, 98125), (875, 90275), (1099, 71875), (2875, 27475), (3125, 25277), (3611, 21875), (3925, 20125), (4025, 19625), (4375, 18055), (5495, 14375)]