40405120

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:366

約数の個数: 128

約数和(自身を含む): 114566400

約数和(自身を除く): 74161280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 128, 140, 145, 160, 203, 224, 232, 280, 290, 311, 320, 406, 448, 464, 560, 580, 622, 640, 812, 896, 928, 1015, 1120, 1160, 1244, 1555, 1624, 1856, 2030, 2177, 2240, 2320, 2488, 3110, 3248, 3712, 4060, 4354, 4480, 4640, 4976, 6220, 6496, 8120, 8708, 9019, 9280, 9952, 10885, 12440, 12992, 16240, 17416, 18038, 18560, 19904, 21770, 24880, 25984, 32480, 34832, 36076, 39808, 43540, 45095, 49760, 63133, 64960, 69664, 72152, 87080, 90190, 99520, 126266, 129920, 139328, 144304, 174160, 180380, 199040, 252532, 278656, 288608, 315665, 348320, 360760, 505064, 577216, 631330, 696640, 721520, 1010128, 1154432, 1262660, 1393280, 1443040, 2020256, 2525320, 2886080, 4040512, 5050640, 5772160, 8081024, 10101280, 20202560, 40405120]

約数ペア:

[(1, 40405120), (2, 20202560), (4, 10101280), (5, 8081024), (7, 5772160), (8, 5050640), (10, 4040512), (14, 2886080), (16, 2525320), (20, 2020256), (28, 1443040), (29, 1393280), (32, 1262660), (35, 1154432), (40, 1010128), (56, 721520), (58, 696640), (64, 631330), (70, 577216), (80, 505064), (112, 360760), (116, 348320), (128, 315665), (140, 288608), (145, 278656), (160, 252532), (203, 199040), (224, 180380), (232, 174160), (280, 144304), (290, 139328), (311, 129920), (320, 126266), (406, 99520), (448, 90190), (464, 87080), (560, 72152), (580, 69664), (622, 64960), (640, 63133), (812, 49760), (896, 45095), (928, 43540), (1015, 39808), (1120, 36076), (1160, 34832), (1244, 32480), (1555, 25984), (1624, 24880), (1856, 21770), (2030, 19904), (2177, 18560), (2240, 18038), (2320, 17416), (2488, 16240), (3110, 12992), (3248, 12440), (3712, 10885), (4060, 9952), (4354, 9280), (4480, 9019), (4640, 8708), (4976, 8120), (6220, 6496)]