261406740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{622397}}^1$

素因数の和:622416

約数の個数: 48

約数和(自身を含む): 836502912

約数和(自身を除く): 575096172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 622397, 1244794, 1867191, 2489588, 3111985, 3734382, 4356779, 6223970, 7468764, 8713558, 9335955, 12447940, 13070337, 17427116, 18671910, 21783895, 26140674, 37343820, 43567790, 52281348, 65351685, 87135580, 130703370, 261406740]

約数ペア:

[(1, 261406740), (2, 130703370), (3, 87135580), (4, 65351685), (5, 52281348), (6, 43567790), (7, 37343820), (10, 26140674), (12, 21783895), (14, 18671910), (15, 17427116), (20, 13070337), (21, 12447940), (28, 9335955), (30, 8713558), (35, 7468764), (42, 6223970), (60, 4356779), (70, 3734382), (84, 3111985), (105, 2489588), (140, 1867191), (210, 1244794), (420, 622397)]