1890980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1039}}^1$

素因数の和:1068

約数の個数: 48

約数和(自身を含む): 4892160

約数和(自身を除く): 3001180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1039, 1820, 2078, 4156, 5195, 7273, 10390, 13507, 14546, 20780, 27014, 29092, 36365, 54028, 67535, 72730, 94549, 135070, 145460, 189098, 270140, 378196, 472745, 945490, 1890980]

約数ペア:

[(1, 1890980), (2, 945490), (4, 472745), (5, 378196), (7, 270140), (10, 189098), (13, 145460), (14, 135070), (20, 94549), (26, 72730), (28, 67535), (35, 54028), (52, 36365), (65, 29092), (70, 27014), (91, 20780), (130, 14546), (140, 13507), (182, 10390), (260, 7273), (364, 5195), (455, 4156), (910, 2078), (1039, 1820)]