15641925

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 28414848

約数和(自身を除く): 12772923

約数列:

[1, 3, 5, 13, 15, 25, 39, 61, 65, 75, 183, 195, 263, 305, 325, 789, 793, 915, 975, 1315, 1525, 2379, 3419, 3945, 3965, 4575, 6575, 10257, 11895, 16043, 17095, 19725, 19825, 48129, 51285, 59475, 80215, 85475, 208559, 240645, 256425, 401075, 625677, 1042795, 1203225, 3128385, 5213975, 15641925]

約数ペア:

[(1, 15641925), (3, 5213975), (5, 3128385), (13, 1203225), (15, 1042795), (25, 625677), (39, 401075), (61, 256425), (65, 240645), (75, 208559), (183, 85475), (195, 80215), (263, 59475), (305, 51285), (325, 48129), (789, 19825), (793, 19725), (915, 17095), (975, 16043), (1315, 11895), (1525, 10257), (2379, 6575), (3419, 4575), (3945, 3965)]