128358620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{1289}}^1$

素因数の和:1694

約数の個数: 48

約数和(自身を含む): 291271680

約数和(自身を除く): 162913060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 383, 766, 1289, 1532, 1915, 2578, 3830, 4979, 5156, 6445, 7660, 9958, 12890, 16757, 19916, 24895, 25780, 33514, 49790, 67028, 83785, 99580, 167570, 335140, 493687, 987374, 1974748, 2468435, 4936870, 6417931, 9873740, 12835862, 25671724, 32089655, 64179310, 128358620]

約数ペア:

[(1, 128358620), (2, 64179310), (4, 32089655), (5, 25671724), (10, 12835862), (13, 9873740), (20, 6417931), (26, 4936870), (52, 2468435), (65, 1974748), (130, 987374), (260, 493687), (383, 335140), (766, 167570), (1289, 99580), (1532, 83785), (1915, 67028), (2578, 49790), (3830, 33514), (4979, 25780), (5156, 24895), (6445, 19916), (7660, 16757), (9958, 12890)]