84639640

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{7477}}^1$

素因数の和:7771

約数の個数: 32

約数和(自身を含む): 191137680

約数和(自身を除く): 106498040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 7477, 11320, 14954, 29908, 37385, 59816, 74770, 149540, 299080, 2115991, 4231982, 8463964, 10579955, 16927928, 21159910, 42319820, 84639640]

約数ペア:

[(1, 84639640), (2, 42319820), (4, 21159910), (5, 16927928), (8, 10579955), (10, 8463964), (20, 4231982), (40, 2115991), (283, 299080), (566, 149540), (1132, 74770), (1415, 59816), (2264, 37385), (2830, 29908), (5660, 14954), (7477, 11320)]