131438960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2011}}^1$

素因数の和:2086

約数の個数: 80

約数和(自身を含む): 329324160

約数和(自身を除く): 197885200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 344, 380, 430, 688, 760, 817, 860, 1520, 1634, 1720, 2011, 3268, 3440, 4022, 4085, 6536, 8044, 8170, 10055, 13072, 16088, 16340, 20110, 32176, 32680, 38209, 40220, 65360, 76418, 80440, 86473, 152836, 160880, 172946, 191045, 305672, 345892, 382090, 432365, 611344, 691784, 764180, 864730, 1383568, 1528360, 1642987, 1729460, 3056720, 3285974, 3458920, 6571948, 6917840, 8214935, 13143896, 16429870, 26287792, 32859740, 65719480, 131438960]

約数ペア:

[(1, 131438960), (2, 65719480), (4, 32859740), (5, 26287792), (8, 16429870), (10, 13143896), (16, 8214935), (19, 6917840), (20, 6571948), (38, 3458920), (40, 3285974), (43, 3056720), (76, 1729460), (80, 1642987), (86, 1528360), (95, 1383568), (152, 864730), (172, 764180), (190, 691784), (215, 611344), (304, 432365), (344, 382090), (380, 345892), (430, 305672), (688, 191045), (760, 172946), (817, 160880), (860, 152836), (1520, 86473), (1634, 80440), (1720, 76418), (2011, 65360), (3268, 40220), (3440, 38209), (4022, 32680), (4085, 32176), (6536, 20110), (8044, 16340), (8170, 16088), (10055, 13072)]