85931720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{306899}}^1$

素因数の和:306917

約数の個数: 32

約数和(自身を含む): 220968000

約数和(自身を除く): 135036280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 306899, 613798, 1227596, 1534495, 2148293, 2455192, 3068990, 4296586, 6137980, 8593172, 10741465, 12275960, 17186344, 21482930, 42965860, 85931720]

約数ペア:

[(1, 85931720), (2, 42965860), (4, 21482930), (5, 17186344), (7, 12275960), (8, 10741465), (10, 8593172), (14, 6137980), (20, 4296586), (28, 3068990), (35, 2455192), (40, 2148293), (56, 1534495), (70, 1227596), (140, 613798), (280, 306899)]