38705720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 91735200

約数和(自身を除く): 53029480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 61, 116, 122, 145, 232, 244, 290, 305, 488, 547, 580, 610, 1094, 1160, 1220, 1769, 2188, 2440, 2735, 3538, 4376, 5470, 7076, 8845, 10940, 14152, 15863, 17690, 21880, 31726, 33367, 35380, 63452, 66734, 70760, 79315, 126904, 133468, 158630, 166835, 266936, 317260, 333670, 634520, 667340, 967643, 1334680, 1935286, 3870572, 4838215, 7741144, 9676430, 19352860, 38705720]

約数ペア:

[(1, 38705720), (2, 19352860), (4, 9676430), (5, 7741144), (8, 4838215), (10, 3870572), (20, 1935286), (29, 1334680), (40, 967643), (58, 667340), (61, 634520), (116, 333670), (122, 317260), (145, 266936), (232, 166835), (244, 158630), (290, 133468), (305, 126904), (488, 79315), (547, 70760), (580, 66734), (610, 63452), (1094, 35380), (1160, 33367), (1220, 31726), (1769, 21880), (2188, 17690), (2440, 15863), (2735, 14152), (3538, 10940), (4376, 8845), (5470, 7076)]