20493780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17977}}^1$

素因数の和:18008

約数の個数: 48

約数和(自身を含む): 60406080

約数和(自身を除く): 39912300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17977, 35954, 53931, 71908, 89885, 107862, 179770, 215724, 269655, 341563, 359540, 539310, 683126, 1024689, 1078620, 1366252, 1707815, 2049378, 3415630, 4098756, 5123445, 6831260, 10246890, 20493780]

約数ペア:

[(1, 20493780), (2, 10246890), (3, 6831260), (4, 5123445), (5, 4098756), (6, 3415630), (10, 2049378), (12, 1707815), (15, 1366252), (19, 1078620), (20, 1024689), (30, 683126), (38, 539310), (57, 359540), (60, 341563), (76, 269655), (95, 215724), (114, 179770), (190, 107862), (228, 89885), (285, 71908), (380, 53931), (570, 35954), (1140, 17977)]