438814540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1290631}}^1$

素因数の和:1290657

約数の個数: 24

約数和(自身を含む): 975717792

約数和(自身を除く): 536903252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1290631, 2581262, 5162524, 6453155, 12906310, 21940727, 25812620, 43881454, 87762908, 109703635, 219407270, 438814540]

約数ペア:

[(1, 438814540), (2, 219407270), (4, 109703635), (5, 87762908), (10, 43881454), (17, 25812620), (20, 21940727), (34, 12906310), (68, 6453155), (85, 5162524), (170, 2581262), (340, 1290631)]