19757540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2897}}^1$

素因数の和:2948

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 26981404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2897, 3410, 5794, 6820, 11588, 14485, 28970, 31867, 57940, 63734, 89807, 127468, 159335, 179614, 318670, 359228, 449035, 637340, 898070, 987877, 1796140, 1975754, 3951508, 4939385, 9878770, 19757540]

約数ペア:

[(1, 19757540), (2, 9878770), (4, 4939385), (5, 3951508), (10, 1975754), (11, 1796140), (20, 987877), (22, 898070), (31, 637340), (44, 449035), (55, 359228), (62, 318670), (110, 179614), (124, 159335), (155, 127468), (220, 89807), (310, 63734), (341, 57940), (620, 31867), (682, 28970), (1364, 14485), (1705, 11588), (2897, 6820), (3410, 5794)]