3978800

素因数分解:

$2^4\times 5^2\times 7^3\times {\mathrm{29}}^1$

素因数の和:68

約数の個数: 120

約数和(自身を含む): 11532000

約数和(自身を除く): 7553200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 35, 40, 49, 50, 56, 58, 70, 80, 98, 100, 112, 116, 140, 145, 175, 196, 200, 203, 232, 245, 280, 290, 343, 350, 392, 400, 406, 464, 490, 560, 580, 686, 700, 725, 784, 812, 980, 1015, 1160, 1225, 1372, 1400, 1421, 1450, 1624, 1715, 1960, 2030, 2320, 2450, 2744, 2800, 2842, 2900, 3248, 3430, 3920, 4060, 4900, 5075, 5488, 5684, 5800, 6860, 7105, 8120, 8575, 9800, 9947, 10150, 11368, 11600, 13720, 14210, 16240, 17150, 19600, 19894, 20300, 22736, 27440, 28420, 34300, 35525, 39788, 40600, 49735, 56840, 68600, 71050, 79576, 81200, 99470, 113680, 137200, 142100, 159152, 198940, 248675, 284200, 397880, 497350, 568400, 795760, 994700, 1989400, 3978800]

約数ペア:

[(1, 3978800), (2, 1989400), (4, 994700), (5, 795760), (7, 568400), (8, 497350), (10, 397880), (14, 284200), (16, 248675), (20, 198940), (25, 159152), (28, 142100), (29, 137200), (35, 113680), (40, 99470), (49, 81200), (50, 79576), (56, 71050), (58, 68600), (70, 56840), (80, 49735), (98, 40600), (100, 39788), (112, 35525), (116, 34300), (140, 28420), (145, 27440), (175, 22736), (196, 20300), (200, 19894), (203, 19600), (232, 17150), (245, 16240), (280, 14210), (290, 13720), (343, 11600), (350, 11368), (392, 10150), (400, 9947), (406, 9800), (464, 8575), (490, 8120), (560, 7105), (580, 6860), (686, 5800), (700, 5684), (725, 5488), (784, 5075), (812, 4900), (980, 4060), (1015, 3920), (1160, 3430), (1225, 3248), (1372, 2900), (1400, 2842), (1421, 2800), (1450, 2744), (1624, 2450), (1715, 2320), (1960, 2030)]