639714880

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1031}}^1$

素因数の和:1332

約数の個数: 112

約数和(自身を含む): 1748918016

約数和(自身を除く): 1109203136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 277, 280, 320, 448, 554, 560, 1031, 1108, 1120, 1385, 1939, 2062, 2216, 2240, 2770, 3878, 4124, 4432, 5155, 5540, 7217, 7756, 8248, 8864, 9695, 10310, 11080, 14434, 15512, 16496, 17728, 19390, 20620, 22160, 28868, 31024, 32992, 36085, 38780, 41240, 44320, 57736, 62048, 65984, 72170, 77560, 82480, 88640, 115472, 124096, 144340, 155120, 164960, 230944, 285587, 288680, 310240, 329920, 461888, 571174, 577360, 620480, 1142348, 1154720, 1427935, 1999109, 2284696, 2309440, 2855870, 3998218, 4569392, 5711740, 7996436, 9138784, 9995545, 11423480, 15992872, 18277568, 19991090, 22846960, 31985744, 39982180, 45693920, 63971488, 79964360, 91387840, 127942976, 159928720, 319857440, 639714880]

約数ペア:

[(1, 639714880), (2, 319857440), (4, 159928720), (5, 127942976), (7, 91387840), (8, 79964360), (10, 63971488), (14, 45693920), (16, 39982180), (20, 31985744), (28, 22846960), (32, 19991090), (35, 18277568), (40, 15992872), (56, 11423480), (64, 9995545), (70, 9138784), (80, 7996436), (112, 5711740), (140, 4569392), (160, 3998218), (224, 2855870), (277, 2309440), (280, 2284696), (320, 1999109), (448, 1427935), (554, 1154720), (560, 1142348), (1031, 620480), (1108, 577360), (1120, 571174), (1385, 461888), (1939, 329920), (2062, 310240), (2216, 288680), (2240, 285587), (2770, 230944), (3878, 164960), (4124, 155120), (4432, 144340), (5155, 124096), (5540, 115472), (7217, 88640), (7756, 82480), (8248, 77560), (8864, 72170), (9695, 65984), (10310, 62048), (11080, 57736), (14434, 44320), (15512, 41240), (16496, 38780), (17728, 36085), (19390, 32992), (20620, 31024), (22160, 28868)]