81788642

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1619}}^1$

素因数の和:1730

約数の個数: 32

約数和(自身を含む): 138801600

約数和(自身を除く): 57012958

約数列:

[1, 2, 13, 26, 29, 58, 67, 134, 377, 754, 871, 1619, 1742, 1943, 3238, 3886, 21047, 25259, 42094, 46951, 50518, 93902, 108473, 216946, 610363, 1220726, 1410149, 2820298, 3145717, 6291434, 40894321, 81788642]

約数ペア:

[(1, 81788642), (2, 40894321), (13, 6291434), (26, 3145717), (29, 2820298), (58, 1410149), (67, 1220726), (134, 610363), (377, 216946), (754, 108473), (871, 93902), (1619, 50518), (1742, 46951), (1943, 42094), (3238, 25259), (3886, 21047)]