30801780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{811}}^1$

素因数の和:1037

約数の個数: 72

約数和(自身を含む): 93990624

約数和(自身を除く): 63188844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 811, 844, 1055, 1266, 1622, 1899, 2110, 2433, 2532, 3165, 3244, 3798, 4055, 4220, 4866, 6330, 7299, 7596, 8110, 9495, 9732, 12165, 12660, 14598, 16220, 18990, 24330, 29196, 36495, 37980, 48660, 72990, 145980, 171121, 342242, 513363, 684484, 855605, 1026726, 1540089, 1711210, 2053452, 2566815, 3080178, 3422420, 5133630, 6160356, 7700445, 10267260, 15400890, 30801780]

約数ペア:

[(1, 30801780), (2, 15400890), (3, 10267260), (4, 7700445), (5, 6160356), (6, 5133630), (9, 3422420), (10, 3080178), (12, 2566815), (15, 2053452), (18, 1711210), (20, 1540089), (30, 1026726), (36, 855605), (45, 684484), (60, 513363), (90, 342242), (180, 171121), (211, 145980), (422, 72990), (633, 48660), (811, 37980), (844, 36495), (1055, 29196), (1266, 24330), (1622, 18990), (1899, 16220), (2110, 14598), (2433, 12660), (2532, 12165), (3165, 9732), (3244, 9495), (3798, 8110), (4055, 7596), (4220, 7299), (4866, 6330)]