123938960

素因数分解:

$2^4\times 5^1\times {\mathrm{727}}^1\times {\mathrm{2131}}^1$

素因数の和:2871

約数の個数: 40

約数和(自身を含む): 288689856

約数和(自身を除く): 164750896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 727, 1454, 2131, 2908, 3635, 4262, 5816, 7270, 8524, 10655, 11632, 14540, 17048, 21310, 29080, 34096, 42620, 58160, 85240, 170480, 1549237, 3098474, 6196948, 7746185, 12393896, 15492370, 24787792, 30984740, 61969480, 123938960]

約数ペア:

[(1, 123938960), (2, 61969480), (4, 30984740), (5, 24787792), (8, 15492370), (10, 12393896), (16, 7746185), (20, 6196948), (40, 3098474), (80, 1549237), (727, 170480), (1454, 85240), (2131, 58160), (2908, 42620), (3635, 34096), (4262, 29080), (5816, 21310), (7270, 17048), (8524, 14540), (10655, 11632)]