1891305

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 3656016

約数和(自身を除く): 1764711

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 61, 65, 117, 159, 183, 195, 265, 305, 477, 549, 585, 689, 793, 795, 915, 2067, 2379, 2385, 2745, 3233, 3445, 3965, 6201, 7137, 9699, 10335, 11895, 16165, 29097, 31005, 35685, 42029, 48495, 126087, 145485, 210145, 378261, 630435, 1891305]

約数ペア:

[(1, 1891305), (3, 630435), (5, 378261), (9, 210145), (13, 145485), (15, 126087), (39, 48495), (45, 42029), (53, 35685), (61, 31005), (65, 29097), (117, 16165), (159, 11895), (183, 10335), (195, 9699), (265, 7137), (305, 6201), (477, 3965), (549, 3445), (585, 3233), (689, 2745), (793, 2385), (795, 2379), (915, 2067)]