20342776280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1\times {\mathrm{10259}}^1$

素因数の和:10916

約数の個数: 64

約数和(自身を含む): 46373148000

約数和(自身を除く): 26030371720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 557, 712, 890, 1114, 1780, 2228, 2785, 3560, 4456, 5570, 10259, 11140, 20518, 22280, 41036, 49573, 51295, 82072, 99146, 102590, 198292, 205180, 247865, 396584, 410360, 495730, 913051, 991460, 1826102, 1982920, 3652204, 4565255, 5714263, 7304408, 9130510, 11428526, 18261020, 22857052, 28571315, 36522040, 45714104, 57142630, 114285260, 228570520, 508569407, 1017138814, 2034277628, 2542847035, 4068555256, 5085694070, 10171388140, 20342776280]

約数ペア:

[(1, 20342776280), (2, 10171388140), (4, 5085694070), (5, 4068555256), (8, 2542847035), (10, 2034277628), (20, 1017138814), (40, 508569407), (89, 228570520), (178, 114285260), (356, 57142630), (445, 45714104), (557, 36522040), (712, 28571315), (890, 22857052), (1114, 18261020), (1780, 11428526), (2228, 9130510), (2785, 7304408), (3560, 5714263), (4456, 4565255), (5570, 3652204), (10259, 1982920), (11140, 1826102), (20518, 991460), (22280, 913051), (41036, 495730), (49573, 410360), (51295, 396584), (82072, 247865), (99146, 205180), (102590, 198292)]