20510028

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{151}}^1$

素因数の和:193

約数の個数: 144

約数和(自身を含む): 66393600

約数和(自身を除く): 45883572

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 49, 63, 66, 77, 84, 98, 99, 126, 132, 147, 151, 154, 196, 198, 231, 252, 294, 302, 308, 343, 396, 441, 453, 462, 539, 588, 604, 686, 693, 882, 906, 924, 1029, 1057, 1078, 1359, 1372, 1386, 1617, 1661, 1764, 1812, 2058, 2114, 2156, 2718, 2772, 3087, 3171, 3234, 3322, 3773, 4116, 4228, 4851, 4983, 5436, 6174, 6342, 6468, 6644, 7399, 7546, 9513, 9702, 9966, 11319, 11627, 12348, 12684, 14798, 14949, 15092, 19026, 19404, 19932, 22197, 22638, 23254, 29596, 29898, 33957, 34881, 38052, 44394, 45276, 46508, 51793, 59796, 66591, 67914, 69762, 81389, 88788, 103586, 104643, 133182, 135828, 139524, 155379, 162778, 207172, 209286, 244167, 266364, 310758, 325556, 418572, 466137, 488334, 569723, 621516, 732501, 932274, 976668, 1139446, 1465002, 1709169, 1864548, 2278892, 2930004, 3418338, 5127507, 6836676, 10255014, 20510028]

約数ペア:

[(1, 20510028), (2, 10255014), (3, 6836676), (4, 5127507), (6, 3418338), (7, 2930004), (9, 2278892), (11, 1864548), (12, 1709169), (14, 1465002), (18, 1139446), (21, 976668), (22, 932274), (28, 732501), (33, 621516), (36, 569723), (42, 488334), (44, 466137), (49, 418572), (63, 325556), (66, 310758), (77, 266364), (84, 244167), (98, 209286), (99, 207172), (126, 162778), (132, 155379), (147, 139524), (151, 135828), (154, 133182), (196, 104643), (198, 103586), (231, 88788), (252, 81389), (294, 69762), (302, 67914), (308, 66591), (343, 59796), (396, 51793), (441, 46508), (453, 45276), (462, 44394), (539, 38052), (588, 34881), (604, 33957), (686, 29898), (693, 29596), (882, 23254), (906, 22638), (924, 22197), (1029, 19932), (1057, 19404), (1078, 19026), (1359, 15092), (1372, 14949), (1386, 14798), (1617, 12684), (1661, 12348), (1764, 11627), (1812, 11319), (2058, 9966), (2114, 9702), (2156, 9513), (2718, 7546), (2772, 7399), (3087, 6644), (3171, 6468), (3234, 6342), (3322, 6174), (3773, 5436), (4116, 4983), (4228, 4851)]