129779840

素因数分解:

$2^7\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1019}}^1$

素因数の和:1237

約数の個数: 64

約数和(自身を含む): 312120000

約数和(自身を除く): 182340160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 320, 398, 640, 796, 995, 1019, 1592, 1990, 2038, 3184, 3980, 4076, 5095, 6368, 7960, 8152, 10190, 12736, 15920, 16304, 20380, 25472, 31840, 32608, 40760, 63680, 65216, 81520, 127360, 130432, 163040, 202781, 326080, 405562, 652160, 811124, 1013905, 1622248, 2027810, 3244496, 4055620, 6488992, 8111240, 12977984, 16222480, 25955968, 32444960, 64889920, 129779840]

約数ペア:

[(1, 129779840), (2, 64889920), (4, 32444960), (5, 25955968), (8, 16222480), (10, 12977984), (16, 8111240), (20, 6488992), (32, 4055620), (40, 3244496), (64, 2027810), (80, 1622248), (128, 1013905), (160, 811124), (199, 652160), (320, 405562), (398, 326080), (640, 202781), (796, 163040), (995, 130432), (1019, 127360), (1592, 81520), (1990, 65216), (2038, 63680), (3184, 40760), (3980, 32608), (4076, 31840), (5095, 25472), (6368, 20380), (7960, 16304), (8152, 15920), (10190, 12736)]