18619920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2351}}^1$

素因数の和:2381

約数の個数: 120

約数和(自身を含む): 68245632

約数和(自身を除く): 49625712

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2351, 2640, 3960, 4702, 7053, 7920, 9404, 11755, 14106, 18808, 21159, 23510, 25861, 28212, 35265, 37616, 42318, 47020, 51722, 56424, 70530, 77583, 84636, 94040, 103444, 105795, 112848, 129305, 141060, 155166, 169272, 188080, 206888, 211590, 232749, 258610, 282120, 310332, 338544, 387915, 413776, 423180, 465498, 517220, 564240, 620664, 775830, 846360, 930996, 1034440, 1163745, 1241328, 1551660, 1692720, 1861992, 2068880, 2327490, 3103320, 3723984, 4654980, 6206640, 9309960, 18619920]

約数ペア:

[(1, 18619920), (2, 9309960), (3, 6206640), (4, 4654980), (5, 3723984), (6, 3103320), (8, 2327490), (9, 2068880), (10, 1861992), (11, 1692720), (12, 1551660), (15, 1241328), (16, 1163745), (18, 1034440), (20, 930996), (22, 846360), (24, 775830), (30, 620664), (33, 564240), (36, 517220), (40, 465498), (44, 423180), (45, 413776), (48, 387915), (55, 338544), (60, 310332), (66, 282120), (72, 258610), (80, 232749), (88, 211590), (90, 206888), (99, 188080), (110, 169272), (120, 155166), (132, 141060), (144, 129305), (165, 112848), (176, 105795), (180, 103444), (198, 94040), (220, 84636), (240, 77583), (264, 70530), (330, 56424), (360, 51722), (396, 47020), (440, 42318), (495, 37616), (528, 35265), (660, 28212), (720, 25861), (792, 23510), (880, 21159), (990, 18808), (1320, 14106), (1584, 11755), (1980, 9404), (2351, 7920), (2640, 7053), (3960, 4702)]