1721972340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{869683}}^1$

素因数の和:869709

約数の個数: 72

約数和(自身を含む): 5698169568

約数和(自身を除く): 3976197228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 869683, 1739366, 2609049, 3478732, 4348415, 5218098, 7827147, 8696830, 9566513, 10436196, 13045245, 15654294, 17393660, 19133026, 26090490, 28699539, 31308588, 38266052, 39135735, 47832565, 52180980, 57399078, 78271470, 86098617, 95665130, 114798156, 143497695, 156542940, 172197234, 191330260, 286995390, 344394468, 430493085, 573990780, 860986170, 1721972340]

約数ペア:

[(1, 1721972340), (2, 860986170), (3, 573990780), (4, 430493085), (5, 344394468), (6, 286995390), (9, 191330260), (10, 172197234), (11, 156542940), (12, 143497695), (15, 114798156), (18, 95665130), (20, 86098617), (22, 78271470), (30, 57399078), (33, 52180980), (36, 47832565), (44, 39135735), (45, 38266052), (55, 31308588), (60, 28699539), (66, 26090490), (90, 19133026), (99, 17393660), (110, 15654294), (132, 13045245), (165, 10436196), (180, 9566513), (198, 8696830), (220, 7827147), (330, 5218098), (396, 4348415), (495, 3478732), (660, 2609049), (990, 1739366), (1980, 869683)]