71621355

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1487}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 130705920

約数和(自身を除く): 59084565

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 169, 195, 247, 285, 507, 741, 845, 1235, 1487, 2535, 3211, 3705, 4461, 7435, 9633, 16055, 19331, 22305, 28253, 48165, 57993, 84759, 96655, 141265, 251303, 289965, 367289, 423795, 753909, 1101867, 1256515, 1836445, 3769545, 4774757, 5509335, 14324271, 23873785, 71621355]

約数ペア:

[(1, 71621355), (3, 23873785), (5, 14324271), (13, 5509335), (15, 4774757), (19, 3769545), (39, 1836445), (57, 1256515), (65, 1101867), (95, 753909), (169, 423795), (195, 367289), (247, 289965), (285, 251303), (507, 141265), (741, 96655), (845, 84759), (1235, 57993), (1487, 48165), (2535, 28253), (3211, 22305), (3705, 19331), (4461, 16055), (7435, 9633)]