18739780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{55117}}^1$

素因数の和:55143

約数の個数: 24

約数和(自身を含む): 41669208

約数和(自身を除く): 22929428

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 55117, 110234, 220468, 275585, 551170, 936989, 1102340, 1873978, 3747956, 4684945, 9369890, 18739780]

約数ペア:

[(1, 18739780), (2, 9369890), (4, 4684945), (5, 3747956), (10, 1873978), (17, 1102340), (20, 936989), (34, 551170), (68, 275585), (85, 220468), (170, 110234), (340, 55117)]