18229640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3187}}^1$

素因数の和:3222

約数の個数: 64

約数和(自身を含む): 48202560

約数和(自身を除く): 29972920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3187, 5720, 6374, 12748, 15935, 25496, 31870, 35057, 41431, 63740, 70114, 82862, 127480, 140228, 165724, 175285, 207155, 280456, 331448, 350570, 414310, 455741, 701140, 828620, 911482, 1402280, 1657240, 1822964, 2278705, 3645928, 4557410, 9114820, 18229640]

約数ペア:

[(1, 18229640), (2, 9114820), (4, 4557410), (5, 3645928), (8, 2278705), (10, 1822964), (11, 1657240), (13, 1402280), (20, 911482), (22, 828620), (26, 701140), (40, 455741), (44, 414310), (52, 350570), (55, 331448), (65, 280456), (88, 207155), (104, 175285), (110, 165724), (130, 140228), (143, 127480), (220, 82862), (260, 70114), (286, 63740), (440, 41431), (520, 35057), (572, 31870), (715, 25496), (1144, 15935), (1430, 12748), (2860, 6374), (3187, 5720)]