18085100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 43965936

約数和(自身を除く): 25880836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 164, 205, 220, 275, 401, 410, 451, 550, 802, 820, 902, 1025, 1100, 1604, 1804, 2005, 2050, 2255, 4010, 4100, 4411, 4510, 8020, 8822, 9020, 10025, 11275, 16441, 17644, 20050, 22055, 22550, 32882, 40100, 44110, 45100, 65764, 82205, 88220, 110275, 164410, 180851, 220550, 328820, 361702, 411025, 441100, 723404, 822050, 904255, 1644100, 1808510, 3617020, 4521275, 9042550, 18085100]

約数ペア:

[(1, 18085100), (2, 9042550), (4, 4521275), (5, 3617020), (10, 1808510), (11, 1644100), (20, 904255), (22, 822050), (25, 723404), (41, 441100), (44, 411025), (50, 361702), (55, 328820), (82, 220550), (100, 180851), (110, 164410), (164, 110275), (205, 88220), (220, 82205), (275, 65764), (401, 45100), (410, 44110), (451, 40100), (550, 32882), (802, 22550), (820, 22055), (902, 20050), (1025, 17644), (1100, 16441), (1604, 11275), (1804, 10025), (2005, 9020), (2050, 8822), (2255, 8020), (4010, 4510), (4100, 4411)]