51690780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1361}}^1$

素因数の和:1587

約数の個数: 72

約数和(自身を含む): 157654224

約数和(自身を除く): 105963444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 844, 1055, 1266, 1361, 1899, 2110, 2532, 2722, 3165, 3798, 4083, 4220, 5444, 6330, 6805, 7596, 8166, 9495, 12249, 12660, 13610, 16332, 18990, 20415, 24498, 27220, 37980, 40830, 48996, 61245, 81660, 122490, 244980, 287171, 574342, 861513, 1148684, 1435855, 1723026, 2584539, 2871710, 3446052, 4307565, 5169078, 5743420, 8615130, 10338156, 12922695, 17230260, 25845390, 51690780]

約数ペア:

[(1, 51690780), (2, 25845390), (3, 17230260), (4, 12922695), (5, 10338156), (6, 8615130), (9, 5743420), (10, 5169078), (12, 4307565), (15, 3446052), (18, 2871710), (20, 2584539), (30, 1723026), (36, 1435855), (45, 1148684), (60, 861513), (90, 574342), (180, 287171), (211, 244980), (422, 122490), (633, 81660), (844, 61245), (1055, 48996), (1266, 40830), (1361, 37980), (1899, 27220), (2110, 24498), (2532, 20415), (2722, 18990), (3165, 16332), (3798, 13610), (4083, 12660), (4220, 12249), (5444, 9495), (6330, 8166), (6805, 7596)]