51781780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1777}}^1$

素因数の和:1864

約数の個数: 48

約数和(自身を含む): 114702336

約数和(自身を除く): 62920556

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 620, 940, 1457, 1777, 2914, 3554, 5828, 7108, 7285, 8885, 14570, 17770, 29140, 35540, 55087, 83519, 110174, 167038, 220348, 275435, 334076, 417595, 550870, 835190, 1101740, 1670380, 2589089, 5178178, 10356356, 12945445, 25890890, 51781780]

約数ペア:

[(1, 51781780), (2, 25890890), (4, 12945445), (5, 10356356), (10, 5178178), (20, 2589089), (31, 1670380), (47, 1101740), (62, 835190), (94, 550870), (124, 417595), (155, 334076), (188, 275435), (235, 220348), (310, 167038), (470, 110174), (620, 83519), (940, 55087), (1457, 35540), (1777, 29140), (2914, 17770), (3554, 14570), (5828, 8885), (7108, 7285)]