19440120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23143}}^1$

素因数の和:23164

約数の個数: 64

約数和(自身を含む): 66654720

約数和(自身を除く): 47214600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23143, 46286, 69429, 92572, 115715, 138858, 162001, 185144, 231430, 277716, 324002, 347145, 462860, 486003, 555432, 648004, 694290, 810005, 925720, 972006, 1296008, 1388580, 1620010, 1944012, 2430015, 2777160, 3240020, 3888024, 4860030, 6480040, 9720060, 19440120]

約数ペア:

[(1, 19440120), (2, 9720060), (3, 6480040), (4, 4860030), (5, 3888024), (6, 3240020), (7, 2777160), (8, 2430015), (10, 1944012), (12, 1620010), (14, 1388580), (15, 1296008), (20, 972006), (21, 925720), (24, 810005), (28, 694290), (30, 648004), (35, 555432), (40, 486003), (42, 462860), (56, 347145), (60, 324002), (70, 277716), (84, 231430), (105, 185144), (120, 162001), (140, 138858), (168, 115715), (210, 92572), (280, 69429), (420, 46286), (840, 23143)]