87238420

素因数分解:

$2^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{6619}}^1$

素因数の和:7287

約数の個数: 24

約数和(自身を含む): 183506400

約数和(自身を除く): 96267980

約数列:

[1, 2, 4, 5, 10, 20, 659, 1318, 2636, 3295, 6590, 6619, 13180, 13238, 26476, 33095, 66190, 132380, 4361921, 8723842, 17447684, 21809605, 43619210, 87238420]

約数ペア:

[(1, 87238420), (2, 43619210), (4, 21809605), (5, 17447684), (10, 8723842), (20, 4361921), (659, 132380), (1318, 66190), (2636, 33095), (3295, 26476), (6590, 13238), (6619, 13180)]