128420425

素因数分解:

$5^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1327}}^1$

素因数の和:1430

約数の個数: 36

約数和(自身を含む): 187726080

約数和(自身を除く): 59305655

約数列:

[1, 5, 7, 25, 35, 49, 79, 175, 245, 395, 553, 1225, 1327, 1975, 2765, 3871, 6635, 9289, 13825, 19355, 33175, 46445, 65023, 96775, 104833, 232225, 325115, 524165, 733831, 1625575, 2620825, 3669155, 5136817, 18345775, 25684085, 128420425]

約数ペア:

[(1, 128420425), (5, 25684085), (7, 18345775), (25, 5136817), (35, 3669155), (49, 2620825), (79, 1625575), (175, 733831), (245, 524165), (395, 325115), (553, 232225), (1225, 104833), (1327, 96775), (1975, 65023), (2765, 46445), (3871, 33175), (6635, 19355), (9289, 13825)]