1219157840

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{281}}^2$

素因数の和:768

約数の個数: 60

約数和(自身を含む): 2859404412

約数和(自身を除く): 1640246572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 281, 386, 562, 772, 965, 1124, 1405, 1544, 1930, 2248, 2810, 3088, 3860, 4496, 5620, 7720, 11240, 15440, 22480, 54233, 78961, 108466, 157922, 216932, 271165, 315844, 394805, 433864, 542330, 631688, 789610, 867728, 1084660, 1263376, 1579220, 2169320, 3158440, 4338640, 6316880, 15239473, 30478946, 60957892, 76197365, 121915784, 152394730, 243831568, 304789460, 609578920, 1219157840]

約数ペア:

[(1, 1219157840), (2, 609578920), (4, 304789460), (5, 243831568), (8, 152394730), (10, 121915784), (16, 76197365), (20, 60957892), (40, 30478946), (80, 15239473), (193, 6316880), (281, 4338640), (386, 3158440), (562, 2169320), (772, 1579220), (965, 1263376), (1124, 1084660), (1405, 867728), (1544, 789610), (1930, 631688), (2248, 542330), (2810, 433864), (3088, 394805), (3860, 315844), (4496, 271165), (5620, 216932), (7720, 157922), (11240, 108466), (15440, 78961), (22480, 54233)]