18946440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:404

約数の個数: 128

約数和(自身を含む): 64540800

約数和(自身を除く): 45594360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 90, 106, 108, 120, 135, 159, 180, 212, 216, 265, 270, 318, 331, 360, 424, 477, 530, 540, 636, 662, 795, 954, 993, 1060, 1080, 1272, 1324, 1431, 1590, 1655, 1908, 1986, 2120, 2385, 2648, 2862, 2979, 3180, 3310, 3816, 3972, 4770, 4965, 5724, 5958, 6360, 6620, 7155, 7944, 8937, 9540, 9930, 11448, 11916, 13240, 14310, 14895, 17543, 17874, 19080, 19860, 23832, 28620, 29790, 35086, 35748, 39720, 44685, 52629, 57240, 59580, 70172, 71496, 87715, 89370, 105258, 119160, 140344, 157887, 175430, 178740, 210516, 263145, 315774, 350860, 357480, 421032, 473661, 526290, 631548, 701720, 789435, 947322, 1052580, 1263096, 1578870, 1894644, 2105160, 2368305, 3157740, 3789288, 4736610, 6315480, 9473220, 18946440]

約数ペア:

[(1, 18946440), (2, 9473220), (3, 6315480), (4, 4736610), (5, 3789288), (6, 3157740), (8, 2368305), (9, 2105160), (10, 1894644), (12, 1578870), (15, 1263096), (18, 1052580), (20, 947322), (24, 789435), (27, 701720), (30, 631548), (36, 526290), (40, 473661), (45, 421032), (53, 357480), (54, 350860), (60, 315774), (72, 263145), (90, 210516), (106, 178740), (108, 175430), (120, 157887), (135, 140344), (159, 119160), (180, 105258), (212, 89370), (216, 87715), (265, 71496), (270, 70172), (318, 59580), (331, 57240), (360, 52629), (424, 44685), (477, 39720), (530, 35748), (540, 35086), (636, 29790), (662, 28620), (795, 23832), (954, 19860), (993, 19080), (1060, 17874), (1080, 17543), (1272, 14895), (1324, 14310), (1431, 13240), (1590, 11916), (1655, 11448), (1908, 9930), (1986, 9540), (2120, 8937), (2385, 7944), (2648, 7155), (2862, 6620), (2979, 6360), (3180, 5958), (3310, 5724), (3816, 4965), (3972, 4770)]