129520640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{41}}^1\times {\mathrm{617}}^1$

素因数の和:683

約数の個数: 88

約数和(自身を含む): 318791592

約数和(自身を除く): 189270952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 512, 617, 640, 656, 820, 1024, 1234, 1280, 1312, 1640, 2468, 2560, 2624, 3085, 3280, 4936, 5120, 5248, 6170, 6560, 9872, 10496, 12340, 13120, 19744, 20992, 24680, 25297, 26240, 39488, 41984, 49360, 50594, 52480, 78976, 98720, 101188, 104960, 126485, 157952, 197440, 202376, 209920, 252970, 315904, 394880, 404752, 505940, 631808, 789760, 809504, 1011880, 1579520, 1619008, 2023760, 3159040, 3238016, 4047520, 6476032, 8095040, 12952064, 16190080, 25904128, 32380160, 64760320, 129520640]

約数ペア:

[(1, 129520640), (2, 64760320), (4, 32380160), (5, 25904128), (8, 16190080), (10, 12952064), (16, 8095040), (20, 6476032), (32, 4047520), (40, 3238016), (41, 3159040), (64, 2023760), (80, 1619008), (82, 1579520), (128, 1011880), (160, 809504), (164, 789760), (205, 631808), (256, 505940), (320, 404752), (328, 394880), (410, 315904), (512, 252970), (617, 209920), (640, 202376), (656, 197440), (820, 157952), (1024, 126485), (1234, 104960), (1280, 101188), (1312, 98720), (1640, 78976), (2468, 52480), (2560, 50594), (2624, 49360), (3085, 41984), (3280, 39488), (4936, 26240), (5120, 25297), (5248, 24680), (6170, 20992), (6560, 19744), (9872, 13120), (10496, 12340)]