81980172

素因数分解:

$2^2\times 3^2\times {\mathrm{103}}^1\times {\mathrm{22109}}^1$

素因数の和:22222

約数の個数: 36

約数和(自身を含む): 209249040

約数和(自身を除く): 127268868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 103, 206, 309, 412, 618, 927, 1236, 1854, 3708, 22109, 44218, 66327, 88436, 132654, 198981, 265308, 397962, 795924, 2277227, 4554454, 6831681, 9108908, 13663362, 20495043, 27326724, 40990086, 81980172]

約数ペア:

[(1, 81980172), (2, 40990086), (3, 27326724), (4, 20495043), (6, 13663362), (9, 9108908), (12, 6831681), (18, 4554454), (36, 2277227), (103, 795924), (206, 397962), (309, 265308), (412, 198981), (618, 132654), (927, 88436), (1236, 66327), (1854, 44218), (3708, 22109)]