25418820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{60521}}^1$

素因数の和:60540

約数の個数: 48

約数和(自身を含む): 81341568

約数和(自身を除く): 55922748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 60521, 121042, 181563, 242084, 302605, 363126, 423647, 605210, 726252, 847294, 907815, 1210420, 1270941, 1694588, 1815630, 2118235, 2541882, 3631260, 4236470, 5083764, 6354705, 8472940, 12709410, 25418820]

約数ペア:

[(1, 25418820), (2, 12709410), (3, 8472940), (4, 6354705), (5, 5083764), (6, 4236470), (7, 3631260), (10, 2541882), (12, 2118235), (14, 1815630), (15, 1694588), (20, 1270941), (21, 1210420), (28, 907815), (30, 847294), (35, 726252), (42, 605210), (60, 423647), (70, 363126), (84, 302605), (105, 242084), (140, 181563), (210, 121042), (420, 60521)]