257883444

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{353}}^1$

素因数の和:606

約数の個数: 144

約数和(自身を含む): 808184832

約数和(自身を除く): 550301388

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 223, 234, 252, 273, 353, 364, 446, 468, 546, 669, 706, 819, 892, 1059, 1092, 1338, 1412, 1561, 1638, 2007, 2118, 2471, 2676, 2899, 3122, 3177, 3276, 4014, 4236, 4589, 4683, 4942, 5798, 6244, 6354, 7413, 8028, 8697, 9178, 9366, 9884, 11596, 12708, 13767, 14049, 14826, 17394, 18356, 18732, 20293, 22239, 26091, 27534, 28098, 29652, 32123, 34788, 40586, 41301, 44478, 52182, 55068, 56196, 60879, 64246, 78719, 81172, 82602, 88956, 96369, 104364, 121758, 128492, 157438, 165204, 182637, 192738, 236157, 243516, 289107, 314876, 365274, 385476, 472314, 551033, 578214, 708471, 730548, 944628, 1023347, 1102066, 1156428, 1416942, 1653099, 2046694, 2204132, 2833884, 3070041, 3306198, 4093388, 4959297, 6140082, 6612396, 7163429, 9210123, 9918594, 12280164, 14326858, 18420246, 19837188, 21490287, 28653716, 36840492, 42980574, 64470861, 85961148, 128941722, 257883444]

約数ペア:

[(1, 257883444), (2, 128941722), (3, 85961148), (4, 64470861), (6, 42980574), (7, 36840492), (9, 28653716), (12, 21490287), (13, 19837188), (14, 18420246), (18, 14326858), (21, 12280164), (26, 9918594), (28, 9210123), (36, 7163429), (39, 6612396), (42, 6140082), (52, 4959297), (63, 4093388), (78, 3306198), (84, 3070041), (91, 2833884), (117, 2204132), (126, 2046694), (156, 1653099), (182, 1416942), (223, 1156428), (234, 1102066), (252, 1023347), (273, 944628), (353, 730548), (364, 708471), (446, 578214), (468, 551033), (546, 472314), (669, 385476), (706, 365274), (819, 314876), (892, 289107), (1059, 243516), (1092, 236157), (1338, 192738), (1412, 182637), (1561, 165204), (1638, 157438), (2007, 128492), (2118, 121758), (2471, 104364), (2676, 96369), (2899, 88956), (3122, 82602), (3177, 81172), (3276, 78719), (4014, 64246), (4236, 60879), (4589, 56196), (4683, 55068), (4942, 52182), (5798, 44478), (6244, 41301), (6354, 40586), (7413, 34788), (8028, 32123), (8697, 29652), (9178, 28098), (9366, 27534), (9884, 26091), (11596, 22239), (12708, 20293), (13767, 18732), (14049, 18356), (14826, 17394)]