81729280

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{953}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 198897552

約数和(自身を除く): 117168272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 536, 640, 670, 953, 1072, 1280, 1340, 1906, 2144, 2680, 3812, 4288, 4765, 5360, 7624, 8576, 9530, 10720, 15248, 17152, 19060, 21440, 30496, 38120, 42880, 60992, 63851, 76240, 85760, 121984, 127702, 152480, 243968, 255404, 304960, 319255, 510808, 609920, 638510, 1021616, 1219840, 1277020, 2043232, 2554040, 4086464, 5108080, 8172928, 10216160, 16345856, 20432320, 40864640, 81729280]

約数ペア:

[(1, 81729280), (2, 40864640), (4, 20432320), (5, 16345856), (8, 10216160), (10, 8172928), (16, 5108080), (20, 4086464), (32, 2554040), (40, 2043232), (64, 1277020), (67, 1219840), (80, 1021616), (128, 638510), (134, 609920), (160, 510808), (256, 319255), (268, 304960), (320, 255404), (335, 243968), (536, 152480), (640, 127702), (670, 121984), (953, 85760), (1072, 76240), (1280, 63851), (1340, 60992), (1906, 42880), (2144, 38120), (2680, 30496), (3812, 21440), (4288, 19060), (4765, 17152), (5360, 15248), (7624, 10720), (8576, 9530)]