12819420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{311}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 39180960

約数和(自身を除く): 26361540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 311, 458, 622, 687, 916, 933, 1145, 1244, 1374, 1555, 1866, 2061, 2290, 2748, 2799, 3110, 3435, 3732, 4122, 4580, 4665, 5598, 6220, 6870, 8244, 9330, 10305, 11196, 13740, 13995, 18660, 20610, 27990, 41220, 55980, 71219, 142438, 213657, 284876, 356095, 427314, 640971, 712190, 854628, 1068285, 1281942, 1424380, 2136570, 2563884, 3204855, 4273140, 6409710, 12819420]

約数ペア:

[(1, 12819420), (2, 6409710), (3, 4273140), (4, 3204855), (5, 2563884), (6, 2136570), (9, 1424380), (10, 1281942), (12, 1068285), (15, 854628), (18, 712190), (20, 640971), (30, 427314), (36, 356095), (45, 284876), (60, 213657), (90, 142438), (180, 71219), (229, 55980), (311, 41220), (458, 27990), (622, 20610), (687, 18660), (916, 13995), (933, 13740), (1145, 11196), (1244, 10305), (1374, 9330), (1555, 8244), (1866, 6870), (2061, 6220), (2290, 5598), (2748, 4665), (2799, 4580), (3110, 4122), (3435, 3732)]