2160900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^4$

素因数の和:48

約数の個数: 135

約数和(自身を含む): 7901621

約数和(自身を除く): 5740721

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 49, 50, 60, 63, 70, 75, 84, 90, 98, 100, 105, 126, 140, 147, 150, 175, 180, 196, 210, 225, 245, 252, 294, 300, 315, 343, 350, 420, 441, 450, 490, 525, 588, 630, 686, 700, 735, 882, 900, 980, 1029, 1050, 1225, 1260, 1372, 1470, 1575, 1715, 1764, 2058, 2100, 2205, 2401, 2450, 2940, 3087, 3150, 3430, 3675, 4116, 4410, 4802, 4900, 5145, 6174, 6300, 6860, 7203, 7350, 8575, 8820, 9604, 10290, 11025, 12005, 12348, 14406, 14700, 15435, 17150, 20580, 21609, 22050, 24010, 25725, 28812, 30870, 34300, 36015, 43218, 44100, 48020, 51450, 60025, 61740, 72030, 77175, 86436, 102900, 108045, 120050, 144060, 154350, 180075, 216090, 240100, 308700, 360150, 432180, 540225, 720300, 1080450, 2160900]

約数ペア:

[(1, 2160900), (2, 1080450), (3, 720300), (4, 540225), (5, 432180), (6, 360150), (7, 308700), (9, 240100), (10, 216090), (12, 180075), (14, 154350), (15, 144060), (18, 120050), (20, 108045), (21, 102900), (25, 86436), (28, 77175), (30, 72030), (35, 61740), (36, 60025), (42, 51450), (45, 48020), (49, 44100), (50, 43218), (60, 36015), (63, 34300), (70, 30870), (75, 28812), (84, 25725), (90, 24010), (98, 22050), (100, 21609), (105, 20580), (126, 17150), (140, 15435), (147, 14700), (150, 14406), (175, 12348), (180, 12005), (196, 11025), (210, 10290), (225, 9604), (245, 8820), (252, 8575), (294, 7350), (300, 7203), (315, 6860), (343, 6300), (350, 6174), (420, 5145), (441, 4900), (450, 4802), (490, 4410), (525, 4116), (588, 3675), (630, 3430), (686, 3150), (700, 3087), (735, 2940), (882, 2450), (900, 2401), (980, 2205), (1029, 2100), (1050, 2058), (1225, 1764), (1260, 1715), (1372, 1575)]