19112500

素因数分解:

$2^2\times 5^5\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 45934560

約数和(自身を除く): 26822060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 139, 220, 250, 275, 278, 500, 550, 556, 625, 695, 1100, 1250, 1375, 1390, 1529, 2500, 2750, 2780, 3058, 3125, 3475, 5500, 6116, 6250, 6875, 6950, 7645, 12500, 13750, 13900, 15290, 17375, 27500, 30580, 34375, 34750, 38225, 68750, 69500, 76450, 86875, 137500, 152900, 173750, 191125, 347500, 382250, 434375, 764500, 868750, 955625, 1737500, 1911250, 3822500, 4778125, 9556250, 19112500]

約数ペア:

[(1, 19112500), (2, 9556250), (4, 4778125), (5, 3822500), (10, 1911250), (11, 1737500), (20, 955625), (22, 868750), (25, 764500), (44, 434375), (50, 382250), (55, 347500), (100, 191125), (110, 173750), (125, 152900), (139, 137500), (220, 86875), (250, 76450), (275, 69500), (278, 68750), (500, 38225), (550, 34750), (556, 34375), (625, 30580), (695, 27500), (1100, 17375), (1250, 15290), (1375, 13900), (1390, 13750), (1529, 12500), (2500, 7645), (2750, 6950), (2780, 6875), (3058, 6250), (3125, 6116), (3475, 5500)]