251199872

素因数分解:

$2^7\times 7^2\times {\mathrm{11}}^2\times {\mathrm{331}}^1$

素因数の和:381

約数の個数: 144

約数和(自身を含む): 641807460

約数和(自身を除く): 390607588

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 88, 98, 112, 121, 128, 154, 176, 196, 224, 242, 308, 331, 352, 392, 448, 484, 539, 616, 662, 704, 784, 847, 896, 968, 1078, 1232, 1324, 1408, 1568, 1694, 1936, 2156, 2317, 2464, 2648, 3136, 3388, 3641, 3872, 4312, 4634, 4928, 5296, 5929, 6272, 6776, 7282, 7744, 8624, 9268, 9856, 10592, 11858, 13552, 14564, 15488, 16219, 17248, 18536, 21184, 23716, 25487, 27104, 29128, 32438, 34496, 37072, 40051, 42368, 47432, 50974, 54208, 58256, 64876, 68992, 74144, 80102, 94864, 101948, 108416, 116512, 129752, 148288, 160204, 178409, 189728, 203896, 233024, 259504, 280357, 296576, 320408, 356818, 379456, 407792, 466048, 519008, 560714, 640816, 713636, 758912, 815584, 1038016, 1121428, 1281632, 1427272, 1631168, 1962499, 2076032, 2242856, 2563264, 2854544, 3262336, 3924998, 4485712, 5126528, 5709088, 7849996, 8971424, 11418176, 15699992, 17942848, 22836352, 31399984, 35885696, 62799968, 125599936, 251199872]

約数ペア:

[(1, 251199872), (2, 125599936), (4, 62799968), (7, 35885696), (8, 31399984), (11, 22836352), (14, 17942848), (16, 15699992), (22, 11418176), (28, 8971424), (32, 7849996), (44, 5709088), (49, 5126528), (56, 4485712), (64, 3924998), (77, 3262336), (88, 2854544), (98, 2563264), (112, 2242856), (121, 2076032), (128, 1962499), (154, 1631168), (176, 1427272), (196, 1281632), (224, 1121428), (242, 1038016), (308, 815584), (331, 758912), (352, 713636), (392, 640816), (448, 560714), (484, 519008), (539, 466048), (616, 407792), (662, 379456), (704, 356818), (784, 320408), (847, 296576), (896, 280357), (968, 259504), (1078, 233024), (1232, 203896), (1324, 189728), (1408, 178409), (1568, 160204), (1694, 148288), (1936, 129752), (2156, 116512), (2317, 108416), (2464, 101948), (2648, 94864), (3136, 80102), (3388, 74144), (3641, 68992), (3872, 64876), (4312, 58256), (4634, 54208), (4928, 50974), (5296, 47432), (5929, 42368), (6272, 40051), (6776, 37072), (7282, 34496), (7744, 32438), (8624, 29128), (9268, 27104), (9856, 25487), (10592, 23716), (11858, 21184), (13552, 18536), (14564, 17248), (15488, 16219)]