81595890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1091}}^1$

素因数の和:1384

約数の個数: 64

約数和(自身を含む): 218574720

約数和(自身を除く): 136978830

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 277, 554, 831, 1091, 1385, 1662, 2182, 2493, 2770, 3273, 4155, 4986, 5455, 6546, 7479, 8310, 9819, 10910, 12465, 14958, 16365, 19638, 24930, 29457, 32730, 37395, 49095, 58914, 74790, 98190, 147285, 294570, 302207, 604414, 906621, 1511035, 1813242, 2719863, 3022070, 4533105, 5439726, 8159589, 9066210, 13599315, 16319178, 27198630, 40797945, 81595890]

約数ペア:

[(1, 81595890), (2, 40797945), (3, 27198630), (5, 16319178), (6, 13599315), (9, 9066210), (10, 8159589), (15, 5439726), (18, 4533105), (27, 3022070), (30, 2719863), (45, 1813242), (54, 1511035), (90, 906621), (135, 604414), (270, 302207), (277, 294570), (554, 147285), (831, 98190), (1091, 74790), (1385, 58914), (1662, 49095), (2182, 37395), (2493, 32730), (2770, 29457), (3273, 24930), (4155, 19638), (4986, 16365), (5455, 14958), (6546, 12465), (7479, 10910), (8310, 9819)]