20812330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26465750

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 151, 154, 179, 302, 358, 385, 755, 770, 895, 1057, 1253, 1510, 1661, 1790, 1969, 2114, 2506, 3322, 3938, 5285, 6265, 8305, 9845, 10570, 11627, 12530, 13783, 16610, 19690, 23254, 27029, 27566, 54058, 58135, 68915, 116270, 135145, 137830, 189203, 270290, 297319, 378406, 594638, 946015, 1486595, 1892030, 2081233, 2973190, 4162466, 10406165, 20812330]

約数ペア:

[(1, 20812330), (2, 10406165), (5, 4162466), (7, 2973190), (10, 2081233), (11, 1892030), (14, 1486595), (22, 946015), (35, 594638), (55, 378406), (70, 297319), (77, 270290), (110, 189203), (151, 137830), (154, 135145), (179, 116270), (302, 68915), (358, 58135), (385, 54058), (755, 27566), (770, 27029), (895, 23254), (1057, 19690), (1253, 16610), (1510, 13783), (1661, 12530), (1790, 11627), (1969, 10570), (2114, 9845), (2506, 8305), (3322, 6265), (3938, 5285)]