256785152

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 604369920

約数和(自身を除く): 347584768

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 32, 38, 52, 62, 64, 76, 104, 124, 128, 131, 152, 208, 247, 248, 256, 262, 304, 403, 416, 494, 496, 524, 589, 608, 806, 832, 988, 992, 1048, 1178, 1216, 1612, 1664, 1703, 1976, 1984, 2096, 2356, 2432, 2489, 3224, 3328, 3406, 3952, 3968, 4061, 4192, 4712, 4864, 4978, 6448, 6812, 7657, 7904, 7936, 8122, 8384, 9424, 9956, 12896, 13624, 15314, 15808, 16244, 16768, 18848, 19912, 25792, 27248, 30628, 31616, 32357, 32488, 33536, 37696, 39824, 51584, 52793, 54496, 61256, 63232, 64714, 64976, 75392, 77159, 79648, 103168, 105586, 108992, 122512, 129428, 129952, 150784, 154318, 159296, 211172, 217984, 245024, 258856, 259904, 308636, 318592, 422344, 435968, 490048, 517712, 519808, 617272, 637184, 844688, 980096, 1003067, 1035424, 1039616, 1234544, 1689376, 1960192, 2006134, 2070848, 2469088, 3378752, 4012268, 4141696, 4938176, 6757504, 8024536, 8283392, 9876352, 13515008, 16049072, 19752704, 32098144, 64196288, 128392576, 256785152]

約数ペア:

[(1, 256785152), (2, 128392576), (4, 64196288), (8, 32098144), (13, 19752704), (16, 16049072), (19, 13515008), (26, 9876352), (31, 8283392), (32, 8024536), (38, 6757504), (52, 4938176), (62, 4141696), (64, 4012268), (76, 3378752), (104, 2469088), (124, 2070848), (128, 2006134), (131, 1960192), (152, 1689376), (208, 1234544), (247, 1039616), (248, 1035424), (256, 1003067), (262, 980096), (304, 844688), (403, 637184), (416, 617272), (494, 519808), (496, 517712), (524, 490048), (589, 435968), (608, 422344), (806, 318592), (832, 308636), (988, 259904), (992, 258856), (1048, 245024), (1178, 217984), (1216, 211172), (1612, 159296), (1664, 154318), (1703, 150784), (1976, 129952), (1984, 129428), (2096, 122512), (2356, 108992), (2432, 105586), (2489, 103168), (3224, 79648), (3328, 77159), (3406, 75392), (3952, 64976), (3968, 64714), (4061, 63232), (4192, 61256), (4712, 54496), (4864, 52793), (4978, 51584), (6448, 39824), (6812, 37696), (7657, 33536), (7904, 32488), (7936, 32357), (8122, 31616), (8384, 30628), (9424, 27248), (9956, 25792), (12896, 19912), (13624, 18848), (15314, 16768), (15808, 16244)]