80357800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5659}}^1$

素因数の和:5746

約数の個数: 48

約数和(自身を含む): 189496800

約数和(自身を除く): 109139000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1775, 2840, 3550, 5659, 7100, 11318, 14200, 22636, 28295, 45272, 56590, 113180, 141475, 226360, 282950, 401789, 565900, 803578, 1131800, 1607156, 2008945, 3214312, 4017890, 8035780, 10044725, 16071560, 20089450, 40178900, 80357800]

約数ペア:

[(1, 80357800), (2, 40178900), (4, 20089450), (5, 16071560), (8, 10044725), (10, 8035780), (20, 4017890), (25, 3214312), (40, 2008945), (50, 1607156), (71, 1131800), (100, 803578), (142, 565900), (200, 401789), (284, 282950), (355, 226360), (568, 141475), (710, 113180), (1420, 56590), (1775, 45272), (2840, 28295), (3550, 22636), (5659, 14200), (7100, 11318)]