25520785960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{157109}}^1$

素因数の和:157282

約数の個数: 64

約数和(自身を含む): 59726937600

約数和(自身を除く): 34206151640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 1048, 1240, 1310, 2620, 4061, 5240, 8122, 16244, 20305, 32488, 40610, 81220, 157109, 162440, 314218, 628436, 785545, 1256872, 1571090, 3142180, 4870379, 6284360, 9740758, 19481516, 20581279, 24351895, 38963032, 41162558, 48703790, 82325116, 97407580, 102906395, 164650232, 194815160, 205812790, 411625580, 638019649, 823251160, 1276039298, 2552078596, 3190098245, 5104157192, 6380196490, 12760392980, 25520785960]

約数ペア:

[(1, 25520785960), (2, 12760392980), (4, 6380196490), (5, 5104157192), (8, 3190098245), (10, 2552078596), (20, 1276039298), (31, 823251160), (40, 638019649), (62, 411625580), (124, 205812790), (131, 194815160), (155, 164650232), (248, 102906395), (262, 97407580), (310, 82325116), (524, 48703790), (620, 41162558), (655, 38963032), (1048, 24351895), (1240, 20581279), (1310, 19481516), (2620, 9740758), (4061, 6284360), (5240, 4870379), (8122, 3142180), (16244, 1571090), (20305, 1256872), (32488, 785545), (40610, 628436), (81220, 314218), (157109, 162440)]