278565376

素因数分解:

$2^9\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:265

約数の個数: 80

約数和(自身を含む): 577463040

約数和(自身を除く): 298897664

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 79, 97, 128, 142, 158, 194, 256, 284, 316, 388, 512, 568, 632, 776, 1136, 1264, 1552, 2272, 2528, 3104, 4544, 5056, 5609, 6208, 6887, 7663, 9088, 10112, 11218, 12416, 13774, 15326, 18176, 20224, 22436, 24832, 27548, 30652, 36352, 40448, 44872, 49664, 55096, 61304, 89744, 110192, 122608, 179488, 220384, 245216, 358976, 440768, 490432, 544073, 717952, 881536, 980864, 1088146, 1435904, 1763072, 1961728, 2176292, 2871808, 3526144, 3923456, 4352584, 8705168, 17410336, 34820672, 69641344, 139282688, 278565376]

約数ペア:

[(1, 278565376), (2, 139282688), (4, 69641344), (8, 34820672), (16, 17410336), (32, 8705168), (64, 4352584), (71, 3923456), (79, 3526144), (97, 2871808), (128, 2176292), (142, 1961728), (158, 1763072), (194, 1435904), (256, 1088146), (284, 980864), (316, 881536), (388, 717952), (512, 544073), (568, 490432), (632, 440768), (776, 358976), (1136, 245216), (1264, 220384), (1552, 179488), (2272, 122608), (2528, 110192), (3104, 89744), (4544, 61304), (5056, 55096), (5609, 49664), (6208, 44872), (6887, 40448), (7663, 36352), (9088, 30652), (10112, 27548), (11218, 24832), (12416, 22436), (13774, 20224), (15326, 18176)]