20770360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 51256800

約数和(自身を除く): 30486440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 104, 118, 130, 236, 260, 295, 472, 520, 590, 677, 767, 1180, 1354, 1534, 2360, 2708, 3068, 3385, 3835, 5416, 6136, 6770, 7670, 8801, 13540, 15340, 17602, 27080, 30680, 35204, 39943, 44005, 70408, 79886, 88010, 159772, 176020, 199715, 319544, 352040, 399430, 519259, 798860, 1038518, 1597720, 2077036, 2596295, 4154072, 5192590, 10385180, 20770360]

約数ペア:

[(1, 20770360), (2, 10385180), (4, 5192590), (5, 4154072), (8, 2596295), (10, 2077036), (13, 1597720), (20, 1038518), (26, 798860), (40, 519259), (52, 399430), (59, 352040), (65, 319544), (104, 199715), (118, 176020), (130, 159772), (236, 88010), (260, 79886), (295, 70408), (472, 44005), (520, 39943), (590, 35204), (677, 30680), (767, 27080), (1180, 17602), (1354, 15340), (1534, 13540), (2360, 8801), (2708, 7670), (3068, 6770), (3385, 6136), (3835, 5416)]