81744985

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 120821760

約数和(自身を除く): 39076775

約数列:

[1, 5, 7, 31, 35, 47, 49, 155, 217, 229, 235, 245, 329, 1085, 1145, 1457, 1519, 1603, 1645, 2303, 7099, 7285, 7595, 8015, 10199, 10763, 11221, 11515, 35495, 49693, 50995, 53815, 56105, 71393, 75341, 248465, 333653, 347851, 356965, 376705, 527387, 1668265, 1739255, 2335571, 2636935, 11677855, 16348997, 81744985]

約数ペア:

[(1, 81744985), (5, 16348997), (7, 11677855), (31, 2636935), (35, 2335571), (47, 1739255), (49, 1668265), (155, 527387), (217, 376705), (229, 356965), (235, 347851), (245, 333653), (329, 248465), (1085, 75341), (1145, 71393), (1457, 56105), (1519, 53815), (1603, 50995), (1645, 49693), (2303, 35495), (7099, 11515), (7285, 11221), (7595, 10763), (8015, 10199)]