87129640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12889}}^1$

素因数の和:12926

約数の個数: 48

約数和(自身を含む): 212298300

約数和(自身を除く): 125168660

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 12889, 25778, 51556, 64445, 103112, 128890, 167557, 257780, 335114, 515560, 670228, 837785, 1340456, 1675570, 2178241, 3351140, 4356482, 6702280, 8712964, 10891205, 17425928, 21782410, 43564820, 87129640]

約数ペア:

[(1, 87129640), (2, 43564820), (4, 21782410), (5, 17425928), (8, 10891205), (10, 8712964), (13, 6702280), (20, 4356482), (26, 3351140), (40, 2178241), (52, 1675570), (65, 1340456), (104, 837785), (130, 670228), (169, 515560), (260, 335114), (338, 257780), (520, 167557), (676, 128890), (845, 103112), (1352, 64445), (1690, 51556), (3380, 25778), (6760, 12889)]