127642256

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:257

約数の個数: 120

約数和(自身を含む): 311571576

約数和(自身を除く): 183929320

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 61, 68, 98, 112, 119, 122, 136, 157, 196, 238, 244, 272, 314, 392, 427, 476, 488, 628, 784, 833, 854, 952, 976, 1037, 1099, 1256, 1666, 1708, 1904, 2074, 2198, 2512, 2669, 2989, 3332, 3416, 4148, 4396, 5338, 5978, 6664, 6832, 7259, 7693, 8296, 8792, 9577, 10676, 11956, 13328, 14518, 15386, 16592, 17584, 18683, 19154, 21352, 23912, 29036, 30772, 37366, 38308, 42704, 47824, 50813, 58072, 61544, 67039, 74732, 76616, 101626, 116144, 123088, 130781, 134078, 149464, 153232, 162809, 203252, 261562, 268156, 298928, 325618, 406504, 469273, 523124, 536312, 651236, 813008, 938546, 1046248, 1072624, 1139663, 1302472, 1877092, 2092496, 2279326, 2604944, 3754184, 4558652, 7508368, 7977641, 9117304, 15955282, 18234608, 31910564, 63821128, 127642256]

約数ペア:

[(1, 127642256), (2, 63821128), (4, 31910564), (7, 18234608), (8, 15955282), (14, 9117304), (16, 7977641), (17, 7508368), (28, 4558652), (34, 3754184), (49, 2604944), (56, 2279326), (61, 2092496), (68, 1877092), (98, 1302472), (112, 1139663), (119, 1072624), (122, 1046248), (136, 938546), (157, 813008), (196, 651236), (238, 536312), (244, 523124), (272, 469273), (314, 406504), (392, 325618), (427, 298928), (476, 268156), (488, 261562), (628, 203252), (784, 162809), (833, 153232), (854, 149464), (952, 134078), (976, 130781), (1037, 123088), (1099, 116144), (1256, 101626), (1666, 76616), (1708, 74732), (1904, 67039), (2074, 61544), (2198, 58072), (2512, 50813), (2669, 47824), (2989, 42704), (3332, 38308), (3416, 37366), (4148, 30772), (4396, 29036), (5338, 23912), (5978, 21352), (6664, 19154), (6832, 18683), (7259, 17584), (7693, 16592), (8296, 15386), (8792, 14518), (9577, 13328), (10676, 11956)]