20120778525

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{46183}}^1$

素因数の和:46390

約数の個数: 48

約数和(自身を含む): 34383803264

約数和(自身を除く): 14263024739

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 157, 185, 471, 555, 785, 925, 2355, 2775, 3925, 5809, 11775, 17427, 29045, 46183, 87135, 138549, 145225, 230915, 435675, 692745, 1154575, 1708771, 3463725, 5126313, 7250731, 8543855, 21752193, 25631565, 36253655, 42719275, 108760965, 128157825, 181268275, 268277047, 543804825, 804831141, 1341385235, 4024155705, 6706926175, 20120778525]

約数ペア:

[(1, 20120778525), (3, 6706926175), (5, 4024155705), (15, 1341385235), (25, 804831141), (37, 543804825), (75, 268277047), (111, 181268275), (157, 128157825), (185, 108760965), (471, 42719275), (555, 36253655), (785, 25631565), (925, 21752193), (2355, 8543855), (2775, 7250731), (3925, 5126313), (5809, 3463725), (11775, 1708771), (17427, 1154575), (29045, 692745), (46183, 435675), (87135, 230915), (138549, 145225)]