13038025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 21748608

約数和(自身を除く): 8710583

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 521, 715, 1001, 1925, 2275, 2605, 3575, 3647, 5005, 5731, 6773, 13025, 18235, 25025, 28655, 33865, 40117, 47411, 74503, 91175, 143275, 169325, 200585, 237055, 372515, 521521, 1002925, 1185275, 1862575, 2607605, 13038025]

約数ペア:

[(1, 13038025), (5, 2607605), (7, 1862575), (11, 1185275), (13, 1002925), (25, 521521), (35, 372515), (55, 237055), (65, 200585), (77, 169325), (91, 143275), (143, 91175), (175, 74503), (275, 47411), (325, 40117), (385, 33865), (455, 28655), (521, 25025), (715, 18235), (1001, 13025), (1925, 6773), (2275, 5731), (2605, 5005), (3575, 3647)]