80230780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{2179}}^1$

素因数の和:2458

約数の個数: 48

約数和(自身を含む): 193374720

約数和(自身を除く): 113143940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 1052, 1315, 1841, 2179, 2630, 3682, 4358, 5260, 7364, 8716, 9205, 10895, 15253, 18410, 21790, 30506, 36820, 43580, 61012, 76265, 152530, 305060, 573077, 1146154, 2292308, 2865385, 4011539, 5730770, 8023078, 11461540, 16046156, 20057695, 40115390, 80230780]

約数ペア:

[(1, 80230780), (2, 40115390), (4, 20057695), (5, 16046156), (7, 11461540), (10, 8023078), (14, 5730770), (20, 4011539), (28, 2865385), (35, 2292308), (70, 1146154), (140, 573077), (263, 305060), (526, 152530), (1052, 76265), (1315, 61012), (1841, 43580), (2179, 36820), (2630, 30506), (3682, 21790), (4358, 18410), (5260, 15253), (7364, 10895), (8716, 9205)]