80354540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{6449}}^1$

素因数の和:6554

約数の個数: 48

約数和(自身を含む): 195048000

約数和(自身を除く): 114693460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 6449, 12460, 12898, 25796, 32245, 45143, 64490, 90286, 128980, 180572, 225715, 451430, 573961, 902860, 1147922, 2295844, 2869805, 4017727, 5739610, 8035454, 11479220, 16070908, 20088635, 40177270, 80354540]

約数ペア:

[(1, 80354540), (2, 40177270), (4, 20088635), (5, 16070908), (7, 11479220), (10, 8035454), (14, 5739610), (20, 4017727), (28, 2869805), (35, 2295844), (70, 1147922), (89, 902860), (140, 573961), (178, 451430), (356, 225715), (445, 180572), (623, 128980), (890, 90286), (1246, 64490), (1780, 45143), (2492, 32245), (3115, 25796), (6230, 12898), (6449, 12460)]