15995625

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:491

約数の個数: 40

約数和(自身を含む): 28116000

約数和(自身を除く): 12120375

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 449, 475, 625, 1347, 1425, 1875, 2245, 2375, 6735, 7125, 8531, 11225, 11875, 25593, 33675, 35625, 42655, 56125, 127965, 168375, 213275, 280625, 639825, 841875, 1066375, 3199125, 5331875, 15995625]

約数ペア:

[(1, 15995625), (3, 5331875), (5, 3199125), (15, 1066375), (19, 841875), (25, 639825), (57, 280625), (75, 213275), (95, 168375), (125, 127965), (285, 56125), (375, 42655), (449, 35625), (475, 33675), (625, 25593), (1347, 11875), (1425, 11225), (1875, 8531), (2245, 7125), (2375, 6735)]