398411720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1422899}}^1$

素因数の和:1422917

約数の個数: 32

約数和(自身を含む): 1024488000

約数和(自身を除く): 626076280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1422899, 2845798, 5691596, 7114495, 9960293, 11383192, 14228990, 19920586, 28457980, 39841172, 49801465, 56915960, 79682344, 99602930, 199205860, 398411720]

約数ペア:

[(1, 398411720), (2, 199205860), (4, 99602930), (5, 79682344), (7, 56915960), (8, 49801465), (10, 39841172), (14, 28457980), (20, 19920586), (28, 14228990), (35, 11383192), (40, 9960293), (56, 7114495), (70, 5691596), (140, 2845798), (280, 1422899)]