25878820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1489}}^1$

素因数の和:1588

約数の個数: 48

約数和(自身を含む): 60076800

約数和(自身を除く): 34197980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1489, 1580, 1738, 2978, 3476, 4345, 5956, 7445, 8690, 14890, 16379, 17380, 29780, 32758, 65516, 81895, 117631, 163790, 235262, 327580, 470524, 588155, 1176310, 1293941, 2352620, 2587882, 5175764, 6469705, 12939410, 25878820]

約数ペア:

[(1, 25878820), (2, 12939410), (4, 6469705), (5, 5175764), (10, 2587882), (11, 2352620), (20, 1293941), (22, 1176310), (44, 588155), (55, 470524), (79, 327580), (110, 235262), (158, 163790), (220, 117631), (316, 81895), (395, 65516), (790, 32758), (869, 29780), (1489, 17380), (1580, 16379), (1738, 14890), (2978, 8690), (3476, 7445), (4345, 5956)]