18223740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{739}}^1$

素因数の和:891

約数の個数: 72

約数和(自身を含む): 55757520

約数和(自身を除く): 37533780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 739, 822, 1233, 1370, 1478, 1644, 2055, 2217, 2466, 2740, 2956, 3695, 4110, 4434, 4932, 6165, 6651, 7390, 8220, 8868, 11085, 12330, 13302, 14780, 22170, 24660, 26604, 33255, 44340, 66510, 101243, 133020, 202486, 303729, 404972, 506215, 607458, 911187, 1012430, 1214916, 1518645, 1822374, 2024860, 3037290, 3644748, 4555935, 6074580, 9111870, 18223740]

約数ペア:

[(1, 18223740), (2, 9111870), (3, 6074580), (4, 4555935), (5, 3644748), (6, 3037290), (9, 2024860), (10, 1822374), (12, 1518645), (15, 1214916), (18, 1012430), (20, 911187), (30, 607458), (36, 506215), (45, 404972), (60, 303729), (90, 202486), (137, 133020), (180, 101243), (274, 66510), (411, 44340), (548, 33255), (685, 26604), (739, 24660), (822, 22170), (1233, 14780), (1370, 13302), (1478, 12330), (1644, 11085), (2055, 8868), (2217, 8220), (2466, 7390), (2740, 6651), (2956, 6165), (3695, 4932), (4110, 4434)]