840802960

素因数分解:

$2^4\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{5387}}^1$

素因数の和:7351

約数の個数: 40

約数和(自身を含む): 1956231936

約数和(自身を除く): 1115428976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1951, 3902, 5387, 7804, 9755, 10774, 15608, 19510, 21548, 26935, 31216, 39020, 43096, 53870, 78040, 86192, 107740, 156080, 215480, 430960, 10510037, 21020074, 42040148, 52550185, 84080296, 105100370, 168160592, 210200740, 420401480, 840802960]

約数ペア:

[(1, 840802960), (2, 420401480), (4, 210200740), (5, 168160592), (8, 105100370), (10, 84080296), (16, 52550185), (20, 42040148), (40, 21020074), (80, 10510037), (1951, 430960), (3902, 215480), (5387, 156080), (7804, 107740), (9755, 86192), (10774, 78040), (15608, 53870), (19510, 43096), (21548, 39020), (26935, 31216)]