20131554280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8250637}}^1$

素因数の和:8250709

約数の個数: 32

約数和(自身を含む): 46038560040

約数和(自身を除く): 25907005760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8250637, 16501274, 33002548, 41253185, 66005096, 82506370, 165012740, 330025480, 503288857, 1006577714, 2013155428, 2516444285, 4026310856, 5032888570, 10065777140, 20131554280]

約数ペア:

[(1, 20131554280), (2, 10065777140), (4, 5032888570), (5, 4026310856), (8, 2516444285), (10, 2013155428), (20, 1006577714), (40, 503288857), (61, 330025480), (122, 165012740), (244, 82506370), (305, 66005096), (488, 41253185), (610, 33002548), (1220, 16501274), (2440, 8250637)]