394538545

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 500860800

約数和(自身を除く): 106322255

約数列:

[1, 5, 43, 61, 67, 215, 305, 335, 449, 2245, 2623, 2881, 4087, 13115, 14405, 19307, 20435, 27389, 30083, 96535, 136945, 150415, 175741, 878705, 1177727, 1293569, 1835063, 5888635, 6467845, 9175315, 78907709, 394538545]

約数ペア:

[(1, 394538545), (5, 78907709), (43, 9175315), (61, 6467845), (67, 5888635), (215, 1835063), (305, 1293569), (335, 1177727), (449, 878705), (2245, 175741), (2623, 150415), (2881, 136945), (4087, 96535), (13115, 30083), (14405, 27389), (19307, 20435)]