19868200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{821}}^1$

素因数の和:859

約数の個数: 72

約数和(自身を含む): 50836590

約数和(自身を除く): 30968390

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 121, 200, 220, 242, 275, 440, 484, 550, 605, 821, 968, 1100, 1210, 1642, 2200, 2420, 3025, 3284, 4105, 4840, 6050, 6568, 8210, 9031, 12100, 16420, 18062, 20525, 24200, 32840, 36124, 41050, 45155, 72248, 82100, 90310, 99341, 164200, 180620, 198682, 225775, 361240, 397364, 451550, 496705, 794728, 903100, 993410, 1806200, 1986820, 2483525, 3973640, 4967050, 9934100, 19868200]

約数ペア:

[(1, 19868200), (2, 9934100), (4, 4967050), (5, 3973640), (8, 2483525), (10, 1986820), (11, 1806200), (20, 993410), (22, 903100), (25, 794728), (40, 496705), (44, 451550), (50, 397364), (55, 361240), (88, 225775), (100, 198682), (110, 180620), (121, 164200), (200, 99341), (220, 90310), (242, 82100), (275, 72248), (440, 45155), (484, 41050), (550, 36124), (605, 32840), (821, 24200), (968, 20525), (1100, 18062), (1210, 16420), (1642, 12100), (2200, 9031), (2420, 8210), (3025, 6568), (3284, 6050), (4105, 4840)]