440129620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{66889}}^1$

素因数の和:66952

約数の個数: 48

約数和(自身を含む): 1078801920

約数和(自身を除く): 638672300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 66889, 133778, 267556, 334445, 468223, 668890, 936446, 1337780, 1872892, 2341115, 3143783, 4682230, 6287566, 9364460, 12575132, 15718915, 22006481, 31437830, 44012962, 62875660, 88025924, 110032405, 220064810, 440129620]

約数ペア:

[(1, 440129620), (2, 220064810), (4, 110032405), (5, 88025924), (7, 62875660), (10, 44012962), (14, 31437830), (20, 22006481), (28, 15718915), (35, 12575132), (47, 9364460), (70, 6287566), (94, 4682230), (140, 3143783), (188, 2341115), (235, 1872892), (329, 1337780), (470, 936446), (658, 668890), (940, 468223), (1316, 334445), (1645, 267556), (3290, 133778), (6580, 66889)]