18188980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{877}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 41153616

約数和(自身を除く): 22964636

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 877, 1037, 1220, 1754, 2074, 3508, 4148, 4385, 5185, 8770, 10370, 14909, 17540, 20740, 29818, 53497, 59636, 74545, 106994, 149090, 213988, 267485, 298180, 534970, 909449, 1069940, 1818898, 3637796, 4547245, 9094490, 18188980]

約数ペア:

[(1, 18188980), (2, 9094490), (4, 4547245), (5, 3637796), (10, 1818898), (17, 1069940), (20, 909449), (34, 534970), (61, 298180), (68, 267485), (85, 213988), (122, 149090), (170, 106994), (244, 74545), (305, 59636), (340, 53497), (610, 29818), (877, 20740), (1037, 17540), (1220, 14909), (1754, 10370), (2074, 8770), (3508, 5185), (4148, 4385)]