19442500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1$

素因数の和:143

約数の個数: 120

約数和(自身を含む): 53532864

約数和(自身を除く): 34090364

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 101, 110, 125, 140, 154, 175, 202, 220, 250, 275, 308, 350, 385, 404, 500, 505, 550, 625, 700, 707, 770, 875, 1010, 1100, 1111, 1250, 1375, 1414, 1540, 1750, 1925, 2020, 2222, 2500, 2525, 2750, 2828, 3500, 3535, 3850, 4375, 4444, 5050, 5500, 5555, 6875, 7070, 7700, 7777, 8750, 9625, 10100, 11110, 12625, 13750, 14140, 15554, 17500, 17675, 19250, 22220, 25250, 27500, 27775, 31108, 35350, 38500, 38885, 48125, 50500, 55550, 63125, 70700, 77770, 88375, 96250, 111100, 126250, 138875, 155540, 176750, 192500, 194425, 252500, 277750, 353500, 388850, 441875, 555500, 694375, 777700, 883750, 972125, 1388750, 1767500, 1944250, 2777500, 3888500, 4860625, 9721250, 19442500]

約数ペア:

[(1, 19442500), (2, 9721250), (4, 4860625), (5, 3888500), (7, 2777500), (10, 1944250), (11, 1767500), (14, 1388750), (20, 972125), (22, 883750), (25, 777700), (28, 694375), (35, 555500), (44, 441875), (50, 388850), (55, 353500), (70, 277750), (77, 252500), (100, 194425), (101, 192500), (110, 176750), (125, 155540), (140, 138875), (154, 126250), (175, 111100), (202, 96250), (220, 88375), (250, 77770), (275, 70700), (308, 63125), (350, 55550), (385, 50500), (404, 48125), (500, 38885), (505, 38500), (550, 35350), (625, 31108), (700, 27775), (707, 27500), (770, 25250), (875, 22220), (1010, 19250), (1100, 17675), (1111, 17500), (1250, 15554), (1375, 14140), (1414, 13750), (1540, 12625), (1750, 11110), (1925, 10100), (2020, 9625), (2222, 8750), (2500, 7777), (2525, 7700), (2750, 7070), (2828, 6875), (3500, 5555), (3535, 5500), (3850, 5050), (4375, 4444)]