156979340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{160183}}^1$

素因数の和:160206

約数の個数: 36

約数和(自身を含む): 383480496

約数和(自身を除く): 226501156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 160183, 320366, 640732, 800915, 1121281, 1601830, 2242562, 3203660, 4485124, 5606405, 7848967, 11212810, 15697934, 22425620, 31395868, 39244835, 78489670, 156979340]

約数ペア:

[(1, 156979340), (2, 78489670), (4, 39244835), (5, 31395868), (7, 22425620), (10, 15697934), (14, 11212810), (20, 7848967), (28, 5606405), (35, 4485124), (49, 3203660), (70, 2242562), (98, 1601830), (140, 1121281), (196, 800915), (245, 640732), (490, 320366), (980, 160183)]