2557425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 4735808

約数和(自身を除く): 2178383

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 61, 65, 75, 129, 183, 195, 215, 305, 325, 559, 645, 793, 915, 975, 1075, 1525, 1677, 2379, 2623, 2795, 3225, 3965, 4575, 7869, 8385, 11895, 13115, 13975, 19825, 34099, 39345, 41925, 59475, 65575, 102297, 170495, 196725, 511485, 852475, 2557425]

約数ペア:

[(1, 2557425), (3, 852475), (5, 511485), (13, 196725), (15, 170495), (25, 102297), (39, 65575), (43, 59475), (61, 41925), (65, 39345), (75, 34099), (129, 19825), (183, 13975), (195, 13115), (215, 11895), (305, 8385), (325, 7869), (559, 4575), (645, 3965), (793, 3225), (915, 2795), (975, 2623), (1075, 2379), (1525, 1677)]