80026040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{12743}}^1$

素因数の和:12911

約数の個数: 32

約数和(自身を含む): 181219680

約数和(自身を除く): 101193640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 12743, 25486, 50972, 63715, 101944, 127430, 254860, 509720, 2000651, 4001302, 8002604, 10003255, 16005208, 20006510, 40013020, 80026040]

約数ペア:

[(1, 80026040), (2, 40013020), (4, 20006510), (5, 16005208), (8, 10003255), (10, 8002604), (20, 4001302), (40, 2000651), (157, 509720), (314, 254860), (628, 127430), (785, 101944), (1256, 63715), (1570, 50972), (3140, 25486), (6280, 12743)]