72428620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{821}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 166543776

約数和(自身を除く): 94115156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 401, 802, 821, 1604, 1642, 2005, 3284, 4010, 4105, 4411, 8020, 8210, 8822, 9031, 16420, 17644, 18062, 22055, 36124, 44110, 45155, 88220, 90310, 180620, 329221, 658442, 1316884, 1646105, 3292210, 3621431, 6584420, 7242862, 14485724, 18107155, 36214310, 72428620]

約数ペア:

[(1, 72428620), (2, 36214310), (4, 18107155), (5, 14485724), (10, 7242862), (11, 6584420), (20, 3621431), (22, 3292210), (44, 1646105), (55, 1316884), (110, 658442), (220, 329221), (401, 180620), (802, 90310), (821, 88220), (1604, 45155), (1642, 44110), (2005, 36124), (3284, 22055), (4010, 18062), (4105, 17644), (4411, 16420), (8020, 9031), (8210, 8822)]