18001480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{269}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 28654520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 269, 280, 478, 538, 956, 1076, 1195, 1345, 1673, 1883, 1912, 2152, 2390, 2690, 3346, 3766, 4780, 5380, 6692, 7532, 8365, 9415, 9560, 10760, 13384, 15064, 16730, 18830, 33460, 37660, 64291, 66920, 75320, 128582, 257164, 321455, 450037, 514328, 642910, 900074, 1285820, 1800148, 2250185, 2571640, 3600296, 4500370, 9000740, 18001480]

約数ペア:

[(1, 18001480), (2, 9000740), (4, 4500370), (5, 3600296), (7, 2571640), (8, 2250185), (10, 1800148), (14, 1285820), (20, 900074), (28, 642910), (35, 514328), (40, 450037), (56, 321455), (70, 257164), (140, 128582), (239, 75320), (269, 66920), (280, 64291), (478, 37660), (538, 33460), (956, 18830), (1076, 16730), (1195, 15064), (1345, 13384), (1673, 10760), (1883, 9560), (1912, 9415), (2152, 8365), (2390, 7532), (2690, 6692), (3346, 5380), (3766, 4780)]