40020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:64

約数の個数: 48

約数和(自身を含む): 120960

約数和(自身を除く): 80940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 29, 30, 46, 58, 60, 69, 87, 92, 115, 116, 138, 145, 174, 230, 276, 290, 345, 348, 435, 460, 580, 667, 690, 870, 1334, 1380, 1740, 2001, 2668, 3335, 4002, 6670, 8004, 10005, 13340, 20010, 40020]

約数ペア:

[(1, 40020), (2, 20010), (3, 13340), (4, 10005), (5, 8004), (6, 6670), (10, 4002), (12, 3335), (15, 2668), (20, 2001), (23, 1740), (29, 1380), (30, 1334), (46, 870), (58, 690), (60, 667), (69, 580), (87, 460), (92, 435), (115, 348), (116, 345), (138, 290), (145, 276), (174, 230)]