31130120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1523}}^1$

素因数の和:1614

約数の個数: 64

約数和(自身を含む): 81198720

約数和(自身を除く): 50068600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 1523, 2044, 2555, 2920, 3046, 4088, 5110, 6092, 7615, 10220, 10661, 12184, 15230, 20440, 21322, 30460, 42644, 53305, 60920, 85288, 106610, 111179, 213220, 222358, 426440, 444716, 555895, 778253, 889432, 1111790, 1556506, 2223580, 3113012, 3891265, 4447160, 6226024, 7782530, 15565060, 31130120]

約数ペア:

[(1, 31130120), (2, 15565060), (4, 7782530), (5, 6226024), (7, 4447160), (8, 3891265), (10, 3113012), (14, 2223580), (20, 1556506), (28, 1111790), (35, 889432), (40, 778253), (56, 555895), (70, 444716), (73, 426440), (140, 222358), (146, 213220), (280, 111179), (292, 106610), (365, 85288), (511, 60920), (584, 53305), (730, 42644), (1022, 30460), (1460, 21322), (1523, 20440), (2044, 15230), (2555, 12184), (2920, 10661), (3046, 10220), (4088, 7615), (5110, 6092)]