20773060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 144

約数和(自身を含む): 57915648

約数和(自身を除く): 37142588

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 41, 44, 47, 49, 55, 70, 77, 82, 94, 98, 110, 140, 154, 164, 188, 196, 205, 220, 235, 245, 287, 308, 329, 385, 410, 451, 470, 490, 517, 539, 574, 658, 770, 820, 902, 940, 980, 1034, 1078, 1148, 1316, 1435, 1540, 1645, 1804, 1927, 2009, 2068, 2156, 2255, 2303, 2585, 2695, 2870, 3157, 3290, 3619, 3854, 4018, 4510, 4606, 5170, 5390, 5740, 6314, 6580, 7238, 7708, 8036, 9020, 9212, 9635, 10045, 10340, 10780, 11515, 12628, 13489, 14476, 15785, 18095, 19270, 20090, 21197, 22099, 23030, 25333, 26978, 31570, 36190, 38540, 40180, 42394, 44198, 46060, 50666, 53956, 63140, 67445, 72380, 84788, 88396, 94423, 101332, 105985, 110495, 126665, 134890, 148379, 188846, 211970, 220990, 253330, 269780, 296758, 377692, 423940, 441980, 472115, 506660, 593516, 741895, 944230, 1038653, 1483790, 1888460, 2077306, 2967580, 4154612, 5193265, 10386530, 20773060]

約数ペア:

[(1, 20773060), (2, 10386530), (4, 5193265), (5, 4154612), (7, 2967580), (10, 2077306), (11, 1888460), (14, 1483790), (20, 1038653), (22, 944230), (28, 741895), (35, 593516), (41, 506660), (44, 472115), (47, 441980), (49, 423940), (55, 377692), (70, 296758), (77, 269780), (82, 253330), (94, 220990), (98, 211970), (110, 188846), (140, 148379), (154, 134890), (164, 126665), (188, 110495), (196, 105985), (205, 101332), (220, 94423), (235, 88396), (245, 84788), (287, 72380), (308, 67445), (329, 63140), (385, 53956), (410, 50666), (451, 46060), (470, 44198), (490, 42394), (517, 40180), (539, 38540), (574, 36190), (658, 31570), (770, 26978), (820, 25333), (902, 23030), (940, 22099), (980, 21197), (1034, 20090), (1078, 19270), (1148, 18095), (1316, 15785), (1435, 14476), (1540, 13489), (1645, 12628), (1804, 11515), (1927, 10780), (2009, 10340), (2068, 10045), (2156, 9635), (2255, 9212), (2303, 9020), (2585, 8036), (2695, 7708), (2870, 7238), (3157, 6580), (3290, 6314), (3619, 5740), (3854, 5390), (4018, 5170), (4510, 4606)]