156780520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{301501}}^1$

素因数の和:301525

約数の個数: 32

約数和(自身を含む): 379892520

約数和(自身を除く): 223112000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 301501, 603002, 1206004, 1507505, 2412008, 3015010, 3919513, 6030020, 7839026, 12060040, 15678052, 19597565, 31356104, 39195130, 78390260, 156780520]

約数ペア:

[(1, 156780520), (2, 78390260), (4, 39195130), (5, 31356104), (8, 19597565), (10, 15678052), (13, 12060040), (20, 7839026), (26, 6030020), (40, 3919513), (52, 3015010), (65, 2412008), (104, 1507505), (130, 1206004), (260, 603002), (520, 301501)]