18745540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 43323840

約数和(自身を除く): 24578300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 613, 695, 1226, 1390, 1529, 2452, 2780, 3058, 3065, 6116, 6130, 6743, 7645, 12260, 13486, 15290, 26972, 30580, 33715, 67430, 85207, 134860, 170414, 340828, 426035, 852070, 937277, 1704140, 1874554, 3749108, 4686385, 9372770, 18745540]

約数ペア:

[(1, 18745540), (2, 9372770), (4, 4686385), (5, 3749108), (10, 1874554), (11, 1704140), (20, 937277), (22, 852070), (44, 426035), (55, 340828), (110, 170414), (139, 134860), (220, 85207), (278, 67430), (556, 33715), (613, 30580), (695, 26972), (1226, 15290), (1390, 13486), (1529, 12260), (2452, 7645), (2780, 6743), (3058, 6130), (3065, 6116)]