123118340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{2687}}^1$

素因数の和:2804

約数の個数: 48

約数和(自身を含む): 270950400

約数和(自身を除く): 147832060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 1580, 2291, 2687, 4582, 5374, 9164, 10748, 11455, 13435, 22910, 26870, 45820, 53740, 77923, 155846, 212273, 311692, 389615, 424546, 779230, 849092, 1061365, 1558460, 2122730, 4245460, 6155917, 12311834, 24623668, 30779585, 61559170, 123118340]

約数ペア:

[(1, 123118340), (2, 61559170), (4, 30779585), (5, 24623668), (10, 12311834), (20, 6155917), (29, 4245460), (58, 2122730), (79, 1558460), (116, 1061365), (145, 849092), (158, 779230), (290, 424546), (316, 389615), (395, 311692), (580, 212273), (790, 155846), (1580, 77923), (2291, 53740), (2687, 45820), (4582, 26870), (5374, 22910), (9164, 13435), (10748, 11455)]