257345820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{4657}}^1$

素因数の和:4979

約数の個数: 72

約数和(自身を含む): 783326544

約数和(自身を除く): 525980724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 307, 614, 921, 1228, 1535, 1842, 2763, 3070, 3684, 4605, 4657, 5526, 6140, 9210, 9314, 11052, 13815, 13971, 18420, 18628, 23285, 27630, 27942, 41913, 46570, 55260, 55884, 69855, 83826, 93140, 139710, 167652, 209565, 279420, 419130, 838260, 1429699, 2859398, 4289097, 5718796, 7148495, 8578194, 12867291, 14296990, 17156388, 21445485, 25734582, 28593980, 42890970, 51469164, 64336455, 85781940, 128672910, 257345820]

約数ペア:

[(1, 257345820), (2, 128672910), (3, 85781940), (4, 64336455), (5, 51469164), (6, 42890970), (9, 28593980), (10, 25734582), (12, 21445485), (15, 17156388), (18, 14296990), (20, 12867291), (30, 8578194), (36, 7148495), (45, 5718796), (60, 4289097), (90, 2859398), (180, 1429699), (307, 838260), (614, 419130), (921, 279420), (1228, 209565), (1535, 167652), (1842, 139710), (2763, 93140), (3070, 83826), (3684, 69855), (4605, 55884), (4657, 55260), (5526, 46570), (6140, 41913), (9210, 27942), (9314, 27630), (11052, 23285), (13815, 18628), (13971, 18420)]