209145040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{201101}}^1$

素因数の和:201127

約数の個数: 40

約数和(自身を含む): 523669608

約数和(自身を除く): 314524568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 201101, 402202, 804404, 1005505, 1608808, 2011010, 2614313, 3217616, 4022020, 5228626, 8044040, 10457252, 13071565, 16088080, 20914504, 26143130, 41829008, 52286260, 104572520, 209145040]

約数ペア:

[(1, 209145040), (2, 104572520), (4, 52286260), (5, 41829008), (8, 26143130), (10, 20914504), (13, 16088080), (16, 13071565), (20, 10457252), (26, 8044040), (40, 5228626), (52, 4022020), (65, 3217616), (80, 2614313), (104, 2011010), (130, 1608808), (208, 1005505), (260, 804404), (520, 402202), (1040, 201101)]