68520140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1249}}^1$

素因数の和:1482

約数の個数: 48

約数和(自身を含む): 155820000

約数和(自身を除く): 87299860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 211, 260, 422, 844, 1055, 1249, 2110, 2498, 2743, 4220, 4996, 5486, 6245, 10972, 12490, 13715, 16237, 24980, 27430, 32474, 54860, 64948, 81185, 162370, 263539, 324740, 527078, 1054156, 1317695, 2635390, 3426007, 5270780, 6852014, 13704028, 17130035, 34260070, 68520140]

約数ペア:

[(1, 68520140), (2, 34260070), (4, 17130035), (5, 13704028), (10, 6852014), (13, 5270780), (20, 3426007), (26, 2635390), (52, 1317695), (65, 1054156), (130, 527078), (211, 324740), (260, 263539), (422, 162370), (844, 81185), (1055, 64948), (1249, 54860), (2110, 32474), (2498, 27430), (2743, 24980), (4220, 16237), (4996, 13715), (5486, 12490), (6245, 10972)]