39887890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{7213}}^1$

素因数の和:7306

約数の個数: 32

約数和(自身を含む): 83105280

約数和(自身を除く): 43217390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 395, 553, 790, 1106, 2765, 5530, 7213, 14426, 36065, 50491, 72130, 100982, 252455, 504910, 569827, 1139654, 2849135, 3988789, 5698270, 7977578, 19943945, 39887890]

約数ペア:

[(1, 39887890), (2, 19943945), (5, 7977578), (7, 5698270), (10, 3988789), (14, 2849135), (35, 1139654), (70, 569827), (79, 504910), (158, 252455), (395, 100982), (553, 72130), (790, 50491), (1106, 36065), (2765, 14426), (5530, 7213)]