257957310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{677}}^1\times {\mathrm{977}}^1$

素因数の和:1677

約数の個数: 64

約数和(自身を含む): 668388672

約数和(自身を除く): 410431362

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 677, 977, 1354, 1954, 2031, 2931, 3385, 4062, 4885, 5862, 6770, 8801, 9770, 10155, 12701, 14655, 17602, 20310, 25402, 26403, 29310, 38103, 44005, 52806, 63505, 76206, 88010, 127010, 132015, 190515, 264030, 381030, 661429, 1322858, 1984287, 3307145, 3968574, 6614290, 8598577, 9921435, 17197154, 19842870, 25795731, 42992885, 51591462, 85985770, 128978655, 257957310]

約数ペア:

[(1, 257957310), (2, 128978655), (3, 85985770), (5, 51591462), (6, 42992885), (10, 25795731), (13, 19842870), (15, 17197154), (26, 9921435), (30, 8598577), (39, 6614290), (65, 3968574), (78, 3307145), (130, 1984287), (195, 1322858), (390, 661429), (677, 381030), (977, 264030), (1354, 190515), (1954, 132015), (2031, 127010), (2931, 88010), (3385, 76206), (4062, 63505), (4885, 52806), (5862, 44005), (6770, 38103), (8801, 29310), (9770, 26403), (10155, 25402), (12701, 20310), (14655, 17602)]