166394020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{2591}}^1$

素因数の和:2645

約数の個数: 72

約数和(自身を含む): 398442240

約数和(自身を除く): 232048220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 676, 845, 988, 1235, 1690, 2470, 2591, 3211, 3380, 4940, 5182, 6422, 10364, 12844, 12955, 16055, 25910, 32110, 33683, 49229, 51820, 64220, 67366, 98458, 134732, 168415, 196916, 246145, 336830, 437879, 492290, 639977, 673660, 875758, 984580, 1279954, 1751516, 2189395, 2559908, 3199885, 4378790, 6399770, 8319701, 8757580, 12799540, 16639402, 33278804, 41598505, 83197010, 166394020]

約数ペア:

[(1, 166394020), (2, 83197010), (4, 41598505), (5, 33278804), (10, 16639402), (13, 12799540), (19, 8757580), (20, 8319701), (26, 6399770), (38, 4378790), (52, 3199885), (65, 2559908), (76, 2189395), (95, 1751516), (130, 1279954), (169, 984580), (190, 875758), (247, 673660), (260, 639977), (338, 492290), (380, 437879), (494, 336830), (676, 246145), (845, 196916), (988, 168415), (1235, 134732), (1690, 98458), (2470, 67366), (2591, 64220), (3211, 51820), (3380, 49229), (4940, 33683), (5182, 32110), (6422, 25910), (10364, 16055), (12844, 12955)]