80412520

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25447}}^1$

素因数の和:25537

約数の個数: 32

約数和(自身を含む): 183225600

約数和(自身を除く): 102813080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 25447, 50894, 101788, 127235, 203576, 254470, 508940, 1017880, 2010313, 4020626, 8041252, 10051565, 16082504, 20103130, 40206260, 80412520]

約数ペア:

[(1, 80412520), (2, 40206260), (4, 20103130), (5, 16082504), (8, 10051565), (10, 8041252), (20, 4020626), (40, 2010313), (79, 1017880), (158, 508940), (316, 254470), (395, 203576), (632, 127235), (790, 101788), (1580, 50894), (3160, 25447)]