289558240

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{11527}}^1$

素因数の和:11699

約数の個数: 48

約数和(自身を含む): 688498272

約数和(自身を除く): 398940032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 785, 1256, 1570, 2512, 3140, 5024, 6280, 11527, 12560, 23054, 25120, 46108, 57635, 92216, 115270, 184432, 230540, 368864, 461080, 922160, 1809739, 1844320, 3619478, 7238956, 9048695, 14477912, 18097390, 28955824, 36194780, 57911648, 72389560, 144779120, 289558240]

約数ペア:

[(1, 289558240), (2, 144779120), (4, 72389560), (5, 57911648), (8, 36194780), (10, 28955824), (16, 18097390), (20, 14477912), (32, 9048695), (40, 7238956), (80, 3619478), (157, 1844320), (160, 1809739), (314, 922160), (628, 461080), (785, 368864), (1256, 230540), (1570, 184432), (2512, 115270), (3140, 92216), (5024, 57635), (6280, 46108), (11527, 25120), (12560, 23054)]