71518840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{29311}}^1$

素因数の和:29383

約数の個数: 32

約数和(自身を含む): 163560960

約数和(自身を除く): 92042120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 29311, 58622, 117244, 146555, 234488, 293110, 586220, 1172440, 1787971, 3575942, 7151884, 8939855, 14303768, 17879710, 35759420, 71518840]

約数ペア:

[(1, 71518840), (2, 35759420), (4, 17879710), (5, 14303768), (8, 8939855), (10, 7151884), (20, 3575942), (40, 1787971), (61, 1172440), (122, 586220), (244, 293110), (305, 234488), (488, 146555), (610, 117244), (1220, 58622), (2440, 29311)]