79444720

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1951}}^1$

素因数の和:2473

約数の個数: 40

約数和(自身を含む): 185166720

約数和(自身を除く): 105722000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 1951, 2036, 2545, 3902, 4072, 5090, 7804, 8144, 9755, 10180, 15608, 19510, 20360, 31216, 39020, 40720, 78040, 156080, 993059, 1986118, 3972236, 4965295, 7944472, 9930590, 15888944, 19861180, 39722360, 79444720]

約数ペア:

[(1, 79444720), (2, 39722360), (4, 19861180), (5, 15888944), (8, 9930590), (10, 7944472), (16, 4965295), (20, 3972236), (40, 1986118), (80, 993059), (509, 156080), (1018, 78040), (1951, 40720), (2036, 39020), (2545, 31216), (3902, 20360), (4072, 19510), (5090, 15608), (7804, 10180), (8144, 9755)]