19784300

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^2\times {\mathrm{107}}^1$

素因数の和:207

約数の個数: 54

約数和(自身を含む): 44364348

約数和(自身を除く): 24580048

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 107, 172, 214, 215, 428, 430, 535, 860, 1070, 1075, 1849, 2140, 2150, 2675, 3698, 4300, 4601, 5350, 7396, 9202, 9245, 10700, 18404, 18490, 23005, 36980, 46010, 46225, 92020, 92450, 115025, 184900, 197843, 230050, 395686, 460100, 791372, 989215, 1978430, 3956860, 4946075, 9892150, 19784300]

約数ペア:

[(1, 19784300), (2, 9892150), (4, 4946075), (5, 3956860), (10, 1978430), (20, 989215), (25, 791372), (43, 460100), (50, 395686), (86, 230050), (100, 197843), (107, 184900), (172, 115025), (214, 92450), (215, 92020), (428, 46225), (430, 46010), (535, 36980), (860, 23005), (1070, 18490), (1075, 18404), (1849, 10700), (2140, 9245), (2150, 9202), (2675, 7396), (3698, 5350), (4300, 4601)]