87401020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3169}}^1$

素因数の和:3382

約数の個数: 48

約数和(自身を含む): 210893760

約数和(自身を除く): 123492740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3169, 3940, 5516, 6338, 6895, 12676, 13790, 15845, 22183, 27580, 31690, 44366, 63380, 88732, 110915, 221830, 443660, 624293, 1248586, 2497172, 3121465, 4370051, 6242930, 8740102, 12485860, 17480204, 21850255, 43700510, 87401020]

約数ペア:

[(1, 87401020), (2, 43700510), (4, 21850255), (5, 17480204), (7, 12485860), (10, 8740102), (14, 6242930), (20, 4370051), (28, 3121465), (35, 2497172), (70, 1248586), (140, 624293), (197, 443660), (394, 221830), (788, 110915), (985, 88732), (1379, 63380), (1970, 44366), (2758, 31690), (3169, 27580), (3940, 22183), (5516, 15845), (6338, 13790), (6895, 12676)]