156996980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{160201}}^1$

素因数の和:160224

約数の個数: 36

約数和(自身を含む): 383523588

約数和(自身を除く): 226526608

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 160201, 320402, 640804, 801005, 1121407, 1602010, 2242814, 3204020, 4485628, 5607035, 7849849, 11214070, 15699698, 22428140, 31399396, 39249245, 78498490, 156996980]

約数ペア:

[(1, 156996980), (2, 78498490), (4, 39249245), (5, 31399396), (7, 22428140), (10, 15699698), (14, 11214070), (20, 7849849), (28, 5607035), (35, 4485628), (49, 3204020), (70, 2242814), (98, 1602010), (140, 1121407), (196, 801005), (245, 640804), (490, 320402), (980, 160201)]