31180940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{787}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 75194112

約数和(自身を除く): 44013172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 566, 787, 1132, 1415, 1574, 1981, 2830, 3148, 3935, 3962, 5509, 5660, 7870, 7924, 9905, 11018, 15740, 19810, 22036, 27545, 39620, 55090, 110180, 222721, 445442, 890884, 1113605, 1559047, 2227210, 3118094, 4454420, 6236188, 7795235, 15590470, 31180940]

約数ペア:

[(1, 31180940), (2, 15590470), (4, 7795235), (5, 6236188), (7, 4454420), (10, 3118094), (14, 2227210), (20, 1559047), (28, 1113605), (35, 890884), (70, 445442), (140, 222721), (283, 110180), (566, 55090), (787, 39620), (1132, 27545), (1415, 22036), (1574, 19810), (1981, 15740), (2830, 11018), (3148, 9905), (3935, 7924), (3962, 7870), (5509, 5660)]