19709375

素因数分解:

$5^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 30373056

約数和(自身を除く): 10663681

約数列:

[1, 5, 7, 17, 25, 35, 53, 85, 119, 125, 175, 265, 371, 425, 595, 625, 875, 901, 1325, 1855, 2125, 2975, 3125, 4375, 4505, 6307, 6625, 9275, 10625, 14875, 21875, 22525, 31535, 33125, 46375, 53125, 74375, 112625, 157675, 165625, 231875, 371875, 563125, 788375, 1159375, 2815625, 3941875, 19709375]

約数ペア:

[(1, 19709375), (5, 3941875), (7, 2815625), (17, 1159375), (25, 788375), (35, 563125), (53, 371875), (85, 231875), (119, 165625), (125, 157675), (175, 112625), (265, 74375), (371, 53125), (425, 46375), (595, 33125), (625, 31535), (875, 22525), (901, 21875), (1325, 14875), (1855, 10625), (2125, 9275), (2975, 6625), (3125, 6307), (4375, 4505)]