1801540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{41}}^1$

素因数の和:89

約数の個数: 48

約数和(自身を含む): 4198320

約数和(自身を除く): 2396780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 169, 205, 260, 338, 410, 533, 676, 820, 845, 1066, 1690, 2132, 2197, 2665, 3380, 4394, 5330, 6929, 8788, 10660, 10985, 13858, 21970, 27716, 34645, 43940, 69290, 90077, 138580, 180154, 360308, 450385, 900770, 1801540]

約数ペア:

[(1, 1801540), (2, 900770), (4, 450385), (5, 360308), (10, 180154), (13, 138580), (20, 90077), (26, 69290), (41, 43940), (52, 34645), (65, 27716), (82, 21970), (130, 13858), (164, 10985), (169, 10660), (205, 8788), (260, 6929), (338, 5330), (410, 4394), (533, 3380), (676, 2665), (820, 2197), (845, 2132), (1066, 1690)]