15380625

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:667

約数の個数: 40

約数和(自身を含む): 27641152

約数和(自身を除く): 12260527

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 625, 631, 975, 1625, 1875, 1893, 3155, 4875, 8125, 8203, 9465, 15775, 24375, 24609, 41015, 47325, 78875, 123045, 205075, 236625, 394375, 615225, 1025375, 1183125, 3076125, 5126875, 15380625]

約数ペア:

[(1, 15380625), (3, 5126875), (5, 3076125), (13, 1183125), (15, 1025375), (25, 615225), (39, 394375), (65, 236625), (75, 205075), (125, 123045), (195, 78875), (325, 47325), (375, 41015), (625, 24609), (631, 24375), (975, 15775), (1625, 9465), (1875, 8203), (1893, 8125), (3155, 4875)]