31128440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1039}}^1$

素因数の和:1164

約数の個数: 64

約数和(自身を含む): 80870400

約数和(自身を除く): 49741960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 749, 856, 1039, 1070, 1498, 2078, 2140, 2996, 3745, 4156, 4280, 5195, 5992, 7273, 7490, 8312, 10390, 14546, 14980, 20780, 29092, 29960, 36365, 41560, 58184, 72730, 111173, 145460, 222346, 290920, 444692, 555865, 778211, 889384, 1111730, 1556422, 2223460, 3112844, 3891055, 4446920, 6225688, 7782110, 15564220, 31128440]

約数ペア:

[(1, 31128440), (2, 15564220), (4, 7782110), (5, 6225688), (7, 4446920), (8, 3891055), (10, 3112844), (14, 2223460), (20, 1556422), (28, 1111730), (35, 889384), (40, 778211), (56, 555865), (70, 444692), (107, 290920), (140, 222346), (214, 145460), (280, 111173), (428, 72730), (535, 58184), (749, 41560), (856, 36365), (1039, 29960), (1070, 29092), (1498, 20780), (2078, 14980), (2140, 14546), (2996, 10390), (3745, 8312), (4156, 7490), (4280, 7273), (5195, 5992)]