18015440

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9791}}^1$

素因数の和:9827

約数の個数: 40

約数和(自身を含む): 43711488

約数和(自身を除く): 25696048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9791, 19582, 39164, 48955, 78328, 97910, 156656, 195820, 225193, 391640, 450386, 783280, 900772, 1125965, 1801544, 2251930, 3603088, 4503860, 9007720, 18015440]

約数ペア:

[(1, 18015440), (2, 9007720), (4, 4503860), (5, 3603088), (8, 2251930), (10, 1801544), (16, 1125965), (20, 900772), (23, 783280), (40, 450386), (46, 391640), (80, 225193), (92, 195820), (115, 156656), (184, 97910), (230, 78328), (368, 48955), (460, 39164), (920, 19582), (1840, 9791)]