28441725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{941}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 52329984

約数和(自身を除く): 23888259

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 155, 195, 325, 403, 465, 775, 941, 975, 1209, 2015, 2325, 2823, 4705, 6045, 10075, 12233, 14115, 23525, 29171, 30225, 36699, 61165, 70575, 87513, 145855, 183495, 305825, 379223, 437565, 729275, 917475, 1137669, 1896115, 2187825, 5688345, 9480575, 28441725]

約数ペア:

[(1, 28441725), (3, 9480575), (5, 5688345), (13, 2187825), (15, 1896115), (25, 1137669), (31, 917475), (39, 729275), (65, 437565), (75, 379223), (93, 305825), (155, 183495), (195, 145855), (325, 87513), (403, 70575), (465, 61165), (775, 36699), (941, 30225), (975, 29171), (1209, 23525), (2015, 14115), (2325, 12233), (2823, 10075), (4705, 6045)]