39787220

素因数分解:

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

素因数の和:473

約数の個数: 72

約数和(自身を含む): 94314024

約数和(自身を除く): 54526804

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 121, 164, 205, 220, 242, 401, 410, 451, 484, 605, 802, 820, 902, 1210, 1604, 1804, 2005, 2255, 2420, 4010, 4411, 4510, 4961, 8020, 8822, 9020, 9922, 16441, 17644, 19844, 22055, 24805, 32882, 44110, 48521, 49610, 65764, 82205, 88220, 97042, 99220, 164410, 180851, 194084, 242605, 328820, 361702, 485210, 723404, 904255, 970420, 1808510, 1989361, 3617020, 3978722, 7957444, 9946805, 19893610, 39787220]

約数ペア:

[(1, 39787220), (2, 19893610), (4, 9946805), (5, 7957444), (10, 3978722), (11, 3617020), (20, 1989361), (22, 1808510), (41, 970420), (44, 904255), (55, 723404), (82, 485210), (110, 361702), (121, 328820), (164, 242605), (205, 194084), (220, 180851), (242, 164410), (401, 99220), (410, 97042), (451, 88220), (484, 82205), (605, 65764), (802, 49610), (820, 48521), (902, 44110), (1210, 32882), (1604, 24805), (1804, 22055), (2005, 19844), (2255, 17644), (2420, 16441), (4010, 9922), (4411, 9020), (4510, 8822), (4961, 8020)]