2118780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 6552000

約数和(自身を除く): 4433220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 149, 158, 180, 237, 298, 316, 395, 447, 474, 596, 711, 745, 790, 894, 948, 1185, 1341, 1422, 1490, 1580, 1788, 2235, 2370, 2682, 2844, 2980, 3555, 4470, 4740, 5364, 6705, 7110, 8940, 11771, 13410, 14220, 23542, 26820, 35313, 47084, 58855, 70626, 105939, 117710, 141252, 176565, 211878, 235420, 353130, 423756, 529695, 706260, 1059390, 2118780]

約数ペア:

[(1, 2118780), (2, 1059390), (3, 706260), (4, 529695), (5, 423756), (6, 353130), (9, 235420), (10, 211878), (12, 176565), (15, 141252), (18, 117710), (20, 105939), (30, 70626), (36, 58855), (45, 47084), (60, 35313), (79, 26820), (90, 23542), (149, 14220), (158, 13410), (180, 11771), (237, 8940), (298, 7110), (316, 6705), (395, 5364), (447, 4740), (474, 4470), (596, 3555), (711, 2980), (745, 2844), (790, 2682), (894, 2370), (948, 2235), (1185, 1788), (1341, 1580), (1422, 1490)]