139399840

素因数分解:

$2^5\times 5^1\times {\mathrm{871249}}^1$

素因数の和:871264

約数の個数: 24

約数和(自身を含む): 329332500

約数和(自身を除く): 189932660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 871249, 1742498, 3484996, 4356245, 6969992, 8712490, 13939984, 17424980, 27879968, 34849960, 69699920, 139399840]

約数ペア:

[(1, 139399840), (2, 69699920), (4, 34849960), (5, 27879968), (8, 17424980), (10, 13939984), (16, 8712490), (20, 6969992), (32, 4356245), (40, 3484996), (80, 1742498), (160, 871249)]