256138610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1627}}^1$

素因数の和:1827

約数の個数: 64

約数和(自身を含む): 571076352

約数和(自身を除く): 314937742

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 173, 182, 346, 455, 865, 910, 1211, 1627, 1730, 2249, 2422, 3254, 4498, 6055, 8135, 11245, 11389, 12110, 15743, 16270, 21151, 22490, 22778, 31486, 42302, 56945, 78715, 105755, 113890, 148057, 157430, 211510, 281471, 296114, 562942, 740285, 1407355, 1480570, 1970297, 2814710, 3659123, 3940594, 7318246, 9851485, 18295615, 19702970, 25613861, 36591230, 51227722, 128069305, 256138610]

約数ペア:

[(1, 256138610), (2, 128069305), (5, 51227722), (7, 36591230), (10, 25613861), (13, 19702970), (14, 18295615), (26, 9851485), (35, 7318246), (65, 3940594), (70, 3659123), (91, 2814710), (130, 1970297), (173, 1480570), (182, 1407355), (346, 740285), (455, 562942), (865, 296114), (910, 281471), (1211, 211510), (1627, 157430), (1730, 148057), (2249, 113890), (2422, 105755), (3254, 78715), (4498, 56945), (6055, 42302), (8135, 31486), (11245, 22778), (11389, 22490), (12110, 21151), (15743, 16270)]