18561440

素因数分解:

$2^5\times 5^1\times {\mathrm{116009}}^1$

素因数の和:116024

約数の個数: 24

約数和(自身を含む): 43851780

約数和(自身を除く): 25290340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 116009, 232018, 464036, 580045, 928072, 1160090, 1856144, 2320180, 3712288, 4640360, 9280720, 18561440]

約数ペア:

[(1, 18561440), (2, 9280720), (4, 4640360), (5, 3712288), (8, 2320180), (10, 1856144), (16, 1160090), (20, 928072), (32, 580045), (40, 464036), (80, 232018), (160, 116009)]