15887740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 36669024

約数和(自身を除く): 20781284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257, 281, 514, 562, 1028, 1124, 1285, 1405, 2570, 2810, 2827, 3091, 5140, 5620, 5654, 6182, 11308, 12364, 14135, 15455, 28270, 30910, 56540, 61820, 72217, 144434, 288868, 361085, 722170, 794387, 1444340, 1588774, 3177548, 3971935, 7943870, 15887740]

約数ペア:

[(1, 15887740), (2, 7943870), (4, 3971935), (5, 3177548), (10, 1588774), (11, 1444340), (20, 794387), (22, 722170), (44, 361085), (55, 288868), (110, 144434), (220, 72217), (257, 61820), (281, 56540), (514, 30910), (562, 28270), (1028, 15455), (1124, 14135), (1285, 12364), (1405, 11308), (2570, 6182), (2810, 5654), (2827, 5620), (3091, 5140)]