81599680

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13421}}^1$

素因数の和:13457

約数の個数: 56

約数和(自身を含む): 204551280

約数和(自身を除く): 122951600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 13421, 26842, 53684, 67105, 107368, 134210, 214736, 254999, 268420, 429472, 509998, 536840, 858944, 1019996, 1073680, 1274995, 2039992, 2147360, 2549990, 4079984, 4294720, 5099980, 8159968, 10199960, 16319936, 20399920, 40799840, 81599680]

約数ペア:

[(1, 81599680), (2, 40799840), (4, 20399920), (5, 16319936), (8, 10199960), (10, 8159968), (16, 5099980), (19, 4294720), (20, 4079984), (32, 2549990), (38, 2147360), (40, 2039992), (64, 1274995), (76, 1073680), (80, 1019996), (95, 858944), (152, 536840), (160, 509998), (190, 429472), (304, 268420), (320, 254999), (380, 214736), (608, 134210), (760, 107368), (1216, 67105), (1520, 53684), (3040, 26842), (6080, 13421)]