15538820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{6421}}^1$

素因数の和:6452

約数の個数: 36

約数和(自身を含む): 35873292

約数和(自身を除く): 20334472

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 6421, 12842, 25684, 32105, 64210, 70631, 128420, 141262, 282524, 353155, 706310, 776941, 1412620, 1553882, 3107764, 3884705, 7769410, 15538820]

約数ペア:

[(1, 15538820), (2, 7769410), (4, 3884705), (5, 3107764), (10, 1553882), (11, 1412620), (20, 776941), (22, 706310), (44, 353155), (55, 282524), (110, 141262), (121, 128420), (220, 70631), (242, 64210), (484, 32105), (605, 25684), (1210, 12842), (2420, 6421)]