7866820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 18063360

約数和(自身を除く): 10196540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 383, 395, 766, 790, 1027, 1532, 1580, 1915, 2054, 3830, 4108, 4979, 5135, 7660, 9958, 10270, 19916, 20540, 24895, 30257, 49790, 60514, 99580, 121028, 151285, 302570, 393341, 605140, 786682, 1573364, 1966705, 3933410, 7866820]

約数ペア:

[(1, 7866820), (2, 3933410), (4, 1966705), (5, 1573364), (10, 786682), (13, 605140), (20, 393341), (26, 302570), (52, 151285), (65, 121028), (79, 99580), (130, 60514), (158, 49790), (260, 30257), (316, 24895), (383, 20540), (395, 19916), (766, 10270), (790, 9958), (1027, 7660), (1532, 5135), (1580, 4979), (1915, 4108), (2054, 3830)]