128796620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{547}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 276836448

約数和(自身を除く): 148039828

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 193, 244, 305, 386, 547, 610, 772, 965, 1094, 1220, 1930, 2188, 2735, 3860, 5470, 10940, 11773, 23546, 33367, 47092, 58865, 66734, 105571, 117730, 133468, 166835, 211142, 235460, 333670, 422284, 527855, 667340, 1055710, 2111420, 6439831, 12879662, 25759324, 32199155, 64398310, 128796620]

約数ペア:

[(1, 128796620), (2, 64398310), (4, 32199155), (5, 25759324), (10, 12879662), (20, 6439831), (61, 2111420), (122, 1055710), (193, 667340), (244, 527855), (305, 422284), (386, 333670), (547, 235460), (610, 211142), (772, 166835), (965, 133468), (1094, 117730), (1220, 105571), (1930, 66734), (2188, 58865), (2735, 47092), (3860, 33367), (5470, 23546), (10940, 11773)]