18380680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19979}}^1$

素因数の和:20013

約数の個数: 32

約数和(自身を含む): 43156800

約数和(自身を除く): 24776120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 19979, 39958, 79916, 99895, 159832, 199790, 399580, 459517, 799160, 919034, 1838068, 2297585, 3676136, 4595170, 9190340, 18380680]

約数ペア:

[(1, 18380680), (2, 9190340), (4, 4595170), (5, 3676136), (8, 2297585), (10, 1838068), (20, 919034), (23, 799160), (40, 459517), (46, 399580), (92, 199790), (115, 159832), (184, 99895), (230, 79916), (460, 39958), (920, 19979)]