68388525

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 129991680

約数和(自身を除く): 61603155

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 47, 75, 87, 141, 145, 223, 225, 235, 261, 423, 435, 669, 705, 725, 1115, 1175, 1305, 1363, 2007, 2115, 2175, 3345, 3525, 4089, 5575, 6467, 6525, 6815, 10035, 10481, 10575, 12267, 16725, 19401, 20445, 31443, 32335, 34075, 50175, 52405, 58203, 61335, 94329, 97005, 102225, 157215, 161675, 262025, 291015, 303949, 306675, 471645, 485025, 786075, 911847, 1455075, 1519745, 2358225, 2735541, 4559235, 7598725, 13677705, 22796175, 68388525]

約数ペア:

[(1, 68388525), (3, 22796175), (5, 13677705), (9, 7598725), (15, 4559235), (25, 2735541), (29, 2358225), (45, 1519745), (47, 1455075), (75, 911847), (87, 786075), (141, 485025), (145, 471645), (223, 306675), (225, 303949), (235, 291015), (261, 262025), (423, 161675), (435, 157215), (669, 102225), (705, 97005), (725, 94329), (1115, 61335), (1175, 58203), (1305, 52405), (1363, 50175), (2007, 34075), (2115, 32335), (2175, 31443), (3345, 20445), (3525, 19401), (4089, 16725), (5575, 12267), (6467, 10575), (6525, 10481), (6815, 10035)]