19199500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:128

約数の個数: 96

約数和(自身を含む): 46126080

約数和(自身を除く): 26926580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 47, 50, 76, 86, 94, 95, 100, 125, 172, 188, 190, 215, 235, 250, 380, 430, 470, 475, 500, 817, 860, 893, 940, 950, 1075, 1175, 1634, 1786, 1900, 2021, 2150, 2350, 2375, 3268, 3572, 4042, 4085, 4300, 4465, 4700, 4750, 5375, 5875, 8084, 8170, 8930, 9500, 10105, 10750, 11750, 16340, 17860, 20210, 20425, 21500, 22325, 23500, 38399, 40420, 40850, 44650, 50525, 76798, 81700, 89300, 101050, 102125, 111625, 153596, 191995, 202100, 204250, 223250, 252625, 383990, 408500, 446500, 505250, 767980, 959975, 1010500, 1919950, 3839900, 4799875, 9599750, 19199500]

約数ペア:

[(1, 19199500), (2, 9599750), (4, 4799875), (5, 3839900), (10, 1919950), (19, 1010500), (20, 959975), (25, 767980), (38, 505250), (43, 446500), (47, 408500), (50, 383990), (76, 252625), (86, 223250), (94, 204250), (95, 202100), (100, 191995), (125, 153596), (172, 111625), (188, 102125), (190, 101050), (215, 89300), (235, 81700), (250, 76798), (380, 50525), (430, 44650), (470, 40850), (475, 40420), (500, 38399), (817, 23500), (860, 22325), (893, 21500), (940, 20425), (950, 20210), (1075, 17860), (1175, 16340), (1634, 11750), (1786, 10750), (1900, 10105), (2021, 9500), (2150, 8930), (2350, 8170), (2375, 8084), (3268, 5875), (3572, 5375), (4042, 4750), (4085, 4700), (4300, 4465)]