201480980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{383}}^1\times {\mathrm{907}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 439326720

約数和(自身を除く): 237845740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 383, 580, 766, 907, 1532, 1814, 1915, 3628, 3830, 4535, 7660, 9070, 11107, 18140, 22214, 26303, 44428, 52606, 55535, 105212, 111070, 131515, 222140, 263030, 347381, 526060, 694762, 1389524, 1736905, 3473810, 6947620, 10074049, 20148098, 40296196, 50370245, 100740490, 201480980]

約数ペア:

[(1, 201480980), (2, 100740490), (4, 50370245), (5, 40296196), (10, 20148098), (20, 10074049), (29, 6947620), (58, 3473810), (116, 1736905), (145, 1389524), (290, 694762), (383, 526060), (580, 347381), (766, 263030), (907, 222140), (1532, 131515), (1814, 111070), (1915, 105212), (3628, 55535), (3830, 52606), (4535, 44428), (7660, 26303), (9070, 22214), (11107, 18140)]