156988520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{301901}}^1$

素因数の和:301925

約数の個数: 32

約数和(自身を含む): 380396520

約数和(自身を除く): 223408000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 301901, 603802, 1207604, 1509505, 2415208, 3019010, 3924713, 6038020, 7849426, 12076040, 15698852, 19623565, 31397704, 39247130, 78494260, 156988520]

約数ペア:

[(1, 156988520), (2, 78494260), (4, 39247130), (5, 31397704), (8, 19623565), (10, 15698852), (13, 12076040), (20, 7849426), (26, 6038020), (40, 3924713), (52, 3019010), (65, 2415208), (104, 1509505), (130, 1207604), (260, 603802), (520, 301901)]