191781180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1657}}^1$

素因数の和:2315

約数の個数: 72

約数和(自身を含む): 582992592

約数和(自身を除く): 391211412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 643, 1286, 1657, 1929, 2572, 3215, 3314, 3858, 4971, 5787, 6430, 6628, 7716, 8285, 9645, 9942, 11574, 12860, 14913, 16570, 19290, 19884, 23148, 24855, 28935, 29826, 33140, 38580, 49710, 57870, 59652, 74565, 99420, 115740, 149130, 298260, 1065451, 2130902, 3196353, 4261804, 5327255, 6392706, 9589059, 10654510, 12785412, 15981765, 19178118, 21309020, 31963530, 38356236, 47945295, 63927060, 95890590, 191781180]

約数ペア:

[(1, 191781180), (2, 95890590), (3, 63927060), (4, 47945295), (5, 38356236), (6, 31963530), (9, 21309020), (10, 19178118), (12, 15981765), (15, 12785412), (18, 10654510), (20, 9589059), (30, 6392706), (36, 5327255), (45, 4261804), (60, 3196353), (90, 2130902), (180, 1065451), (643, 298260), (1286, 149130), (1657, 115740), (1929, 99420), (2572, 74565), (3215, 59652), (3314, 57870), (3858, 49710), (4971, 38580), (5787, 33140), (6430, 29826), (6628, 28935), (7716, 24855), (8285, 23148), (9645, 19884), (9942, 19290), (11574, 16570), (12860, 14913)]