220929620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{649793}}^1$

素因数の和:649819

約数の個数: 24

約数和(自身を含む): 491244264

約数和(自身を除く): 270314644

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 649793, 1299586, 2599172, 3248965, 6497930, 11046481, 12995860, 22092962, 44185924, 55232405, 110464810, 220929620]

約数ペア:

[(1, 220929620), (2, 110464810), (4, 55232405), (5, 44185924), (10, 22092962), (17, 12995860), (20, 11046481), (34, 6497930), (68, 3248965), (85, 2599172), (170, 1299586), (340, 649793)]