8965515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2043

約数の個数: 32

約数和(自身を含む): 16128000

約数和(自身を除く): 7162485

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 1999, 4485, 5997, 9995, 25987, 29985, 45977, 77961, 129935, 137931, 229885, 389805, 597701, 689655, 1793103, 2988505, 8965515]

約数ペア:

[(1, 8965515), (3, 2988505), (5, 1793103), (13, 689655), (15, 597701), (23, 389805), (39, 229885), (65, 137931), (69, 129935), (115, 77961), (195, 45977), (299, 29985), (345, 25987), (897, 9995), (1495, 5997), (1999, 4485)]