19622980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1063}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 25422524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1063, 1420, 1846, 2126, 3692, 4252, 4615, 5315, 9230, 10630, 13819, 18460, 21260, 27638, 55276, 69095, 75473, 138190, 150946, 276380, 301892, 377365, 754730, 981149, 1509460, 1962298, 3924596, 4905745, 9811490, 19622980]

約数ペア:

[(1, 19622980), (2, 9811490), (4, 4905745), (5, 3924596), (10, 1962298), (13, 1509460), (20, 981149), (26, 754730), (52, 377365), (65, 301892), (71, 276380), (130, 150946), (142, 138190), (260, 75473), (284, 69095), (355, 55276), (710, 27638), (923, 21260), (1063, 18460), (1420, 13819), (1846, 10630), (2126, 9230), (3692, 5315), (4252, 4615)]