722480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{821}}^1$

素因数の和:845

約数の個数: 40

約数和(自身を含む): 1834704

約数和(自身を除く): 1112224

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 821, 880, 1642, 3284, 4105, 6568, 8210, 9031, 13136, 16420, 18062, 32840, 36124, 45155, 65680, 72248, 90310, 144496, 180620, 361240, 722480]

約数ペア:

[(1, 722480), (2, 361240), (4, 180620), (5, 144496), (8, 90310), (10, 72248), (11, 65680), (16, 45155), (20, 36124), (22, 32840), (40, 18062), (44, 16420), (55, 13136), (80, 9031), (88, 8210), (110, 6568), (176, 4105), (220, 3284), (440, 1642), (821, 880)]