155556280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1013}}^1$

素因数の和:1384

約数の個数: 64

約数和(自身を含む): 383292000

約数和(自身を除く): 227735720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 349, 440, 698, 1013, 1396, 1745, 2026, 2792, 3490, 3839, 4052, 5065, 6980, 7678, 8104, 10130, 11143, 13960, 15356, 19195, 20260, 22286, 30712, 38390, 40520, 44572, 55715, 76780, 89144, 111430, 153560, 222860, 353537, 445720, 707074, 1414148, 1767685, 2828296, 3535370, 3888907, 7070740, 7777814, 14141480, 15555628, 19444535, 31111256, 38889070, 77778140, 155556280]

約数ペア:

[(1, 155556280), (2, 77778140), (4, 38889070), (5, 31111256), (8, 19444535), (10, 15555628), (11, 14141480), (20, 7777814), (22, 7070740), (40, 3888907), (44, 3535370), (55, 2828296), (88, 1767685), (110, 1414148), (220, 707074), (349, 445720), (440, 353537), (698, 222860), (1013, 153560), (1396, 111430), (1745, 89144), (2026, 76780), (2792, 55715), (3490, 44572), (3839, 40520), (4052, 38390), (5065, 30712), (6980, 22286), (7678, 20260), (8104, 19195), (10130, 15356), (11143, 13960)]