15863980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72109}}^1$

素因数の和:72129

約数の個数: 24

約数和(自身を含む): 36343440

約数和(自身を除く): 20479460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 72109, 144218, 288436, 360545, 721090, 793199, 1442180, 1586398, 3172796, 3965995, 7931990, 15863980]

約数ペア:

[(1, 15863980), (2, 7931990), (4, 3965995), (5, 3172796), (10, 1586398), (11, 1442180), (20, 793199), (22, 721090), (44, 360545), (55, 288436), (110, 144218), (220, 72109)]