78976768

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1249}}^1$

素因数の和:1297

約数の個数: 72

約数和(自身を含む): 178850000

約数和(自身を除く): 99873232

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 256, 304, 416, 494, 608, 832, 988, 1216, 1249, 1664, 1976, 2432, 2498, 3328, 3952, 4864, 4996, 7904, 9992, 15808, 16237, 19984, 23731, 31616, 32474, 39968, 47462, 63232, 64948, 79936, 94924, 129896, 159872, 189848, 259792, 308503, 319744, 379696, 519584, 617006, 759392, 1039168, 1234012, 1518784, 2078336, 2468024, 3037568, 4156672, 4936048, 6075136, 9872096, 19744192, 39488384, 78976768]

約数ペア:

[(1, 78976768), (2, 39488384), (4, 19744192), (8, 9872096), (13, 6075136), (16, 4936048), (19, 4156672), (26, 3037568), (32, 2468024), (38, 2078336), (52, 1518784), (64, 1234012), (76, 1039168), (104, 759392), (128, 617006), (152, 519584), (208, 379696), (247, 319744), (256, 308503), (304, 259792), (416, 189848), (494, 159872), (608, 129896), (832, 94924), (988, 79936), (1216, 64948), (1249, 63232), (1664, 47462), (1976, 39968), (2432, 32474), (2498, 31616), (3328, 23731), (3952, 19984), (4864, 16237), (4996, 15808), (7904, 9992)]