20428002

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:117

約数の個数: 144

約数和(自身を含む): 57620160

約数和(自身を除く): 37192158

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 23, 38, 42, 46, 49, 53, 57, 63, 69, 98, 106, 114, 126, 133, 138, 147, 159, 161, 171, 207, 266, 294, 318, 322, 342, 371, 399, 414, 437, 441, 477, 483, 742, 798, 874, 882, 931, 954, 966, 1007, 1113, 1127, 1197, 1219, 1311, 1449, 1862, 2014, 2226, 2254, 2394, 2438, 2597, 2622, 2793, 2898, 3021, 3059, 3339, 3381, 3657, 3933, 5194, 5586, 6042, 6118, 6678, 6762, 7049, 7314, 7791, 7866, 8379, 8533, 9063, 9177, 10143, 10971, 14098, 15582, 16758, 17066, 18126, 18354, 20286, 21147, 21413, 21942, 23161, 23373, 25599, 27531, 42294, 42826, 46322, 46746, 49343, 51198, 55062, 59731, 63441, 64239, 69483, 76797, 98686, 119462, 126882, 128478, 138966, 148029, 153594, 162127, 179193, 192717, 208449, 296058, 324254, 358386, 385434, 416898, 444087, 486381, 537579, 888174, 972762, 1075158, 1134889, 1459143, 2269778, 2918286, 3404667, 6809334, 10214001, 20428002]

約数ペア:

[(1, 20428002), (2, 10214001), (3, 6809334), (6, 3404667), (7, 2918286), (9, 2269778), (14, 1459143), (18, 1134889), (19, 1075158), (21, 972762), (23, 888174), (38, 537579), (42, 486381), (46, 444087), (49, 416898), (53, 385434), (57, 358386), (63, 324254), (69, 296058), (98, 208449), (106, 192717), (114, 179193), (126, 162127), (133, 153594), (138, 148029), (147, 138966), (159, 128478), (161, 126882), (171, 119462), (207, 98686), (266, 76797), (294, 69483), (318, 64239), (322, 63441), (342, 59731), (371, 55062), (399, 51198), (414, 49343), (437, 46746), (441, 46322), (477, 42826), (483, 42294), (742, 27531), (798, 25599), (874, 23373), (882, 23161), (931, 21942), (954, 21413), (966, 21147), (1007, 20286), (1113, 18354), (1127, 18126), (1197, 17066), (1219, 16758), (1311, 15582), (1449, 14098), (1862, 10971), (2014, 10143), (2226, 9177), (2254, 9063), (2394, 8533), (2438, 8379), (2597, 7866), (2622, 7791), (2793, 7314), (2898, 7049), (3021, 6762), (3059, 6678), (3339, 6118), (3381, 6042), (3657, 5586), (3933, 5194)]