19298125

素因数分解:

$5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 30140352

約数和(自身を除く): 10842227

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 401, 625, 875, 1375, 1925, 2005, 2807, 4375, 4411, 6875, 9625, 10025, 14035, 22055, 30877, 48125, 50125, 70175, 110275, 154385, 250625, 350875, 551375, 771925, 1754375, 2756875, 3859625, 19298125]

約数ペア:

[(1, 19298125), (5, 3859625), (7, 2756875), (11, 1754375), (25, 771925), (35, 551375), (55, 350875), (77, 250625), (125, 154385), (175, 110275), (275, 70175), (385, 50125), (401, 48125), (625, 30877), (875, 22055), (1375, 14035), (1925, 10025), (2005, 9625), (2807, 6875), (4375, 4411)]