209212920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1361}}^1$

素因数の和:1446

約数の個数: 192

約数和(自身を含む): 790395840

約数和(自身を除く): 581182920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 61, 63, 70, 72, 84, 90, 105, 120, 122, 126, 140, 168, 180, 183, 210, 244, 252, 280, 305, 315, 360, 366, 420, 427, 488, 504, 549, 610, 630, 732, 840, 854, 915, 1098, 1220, 1260, 1281, 1361, 1464, 1708, 1830, 2135, 2196, 2440, 2520, 2562, 2722, 2745, 3416, 3660, 3843, 4083, 4270, 4392, 5124, 5444, 5490, 6405, 6805, 7320, 7686, 8166, 8540, 9527, 10248, 10888, 10980, 12249, 12810, 13610, 15372, 16332, 17080, 19054, 19215, 20415, 21960, 24498, 25620, 27220, 28581, 30744, 32664, 38108, 38430, 40830, 47635, 48996, 51240, 54440, 57162, 61245, 76216, 76860, 81660, 83021, 85743, 95270, 97992, 114324, 122490, 142905, 153720, 163320, 166042, 171486, 190540, 228648, 244980, 249063, 285810, 332084, 342972, 381080, 415105, 428715, 489960, 498126, 571620, 581147, 664168, 685944, 747189, 830210, 857430, 996252, 1143240, 1162294, 1245315, 1494378, 1660420, 1714860, 1743441, 1992504, 2324588, 2490630, 2905735, 2988756, 3320840, 3429720, 3486882, 3735945, 4649176, 4981260, 5230323, 5811470, 5977512, 6973764, 7471890, 8717205, 9962520, 10460646, 11622940, 13947528, 14943780, 17434410, 20921292, 23245880, 26151615, 29887560, 34868820, 41842584, 52303230, 69737640, 104606460, 209212920]

約数ペア:

[(1, 209212920), (2, 104606460), (3, 69737640), (4, 52303230), (5, 41842584), (6, 34868820), (7, 29887560), (8, 26151615), (9, 23245880), (10, 20921292), (12, 17434410), (14, 14943780), (15, 13947528), (18, 11622940), (20, 10460646), (21, 9962520), (24, 8717205), (28, 7471890), (30, 6973764), (35, 5977512), (36, 5811470), (40, 5230323), (42, 4981260), (45, 4649176), (56, 3735945), (60, 3486882), (61, 3429720), (63, 3320840), (70, 2988756), (72, 2905735), (84, 2490630), (90, 2324588), (105, 1992504), (120, 1743441), (122, 1714860), (126, 1660420), (140, 1494378), (168, 1245315), (180, 1162294), (183, 1143240), (210, 996252), (244, 857430), (252, 830210), (280, 747189), (305, 685944), (315, 664168), (360, 581147), (366, 571620), (420, 498126), (427, 489960), (488, 428715), (504, 415105), (549, 381080), (610, 342972), (630, 332084), (732, 285810), (840, 249063), (854, 244980), (915, 228648), (1098, 190540), (1220, 171486), (1260, 166042), (1281, 163320), (1361, 153720), (1464, 142905), (1708, 122490), (1830, 114324), (2135, 97992), (2196, 95270), (2440, 85743), (2520, 83021), (2562, 81660), (2722, 76860), (2745, 76216), (3416, 61245), (3660, 57162), (3843, 54440), (4083, 51240), (4270, 48996), (4392, 47635), (5124, 40830), (5444, 38430), (5490, 38108), (6405, 32664), (6805, 30744), (7320, 28581), (7686, 27220), (8166, 25620), (8540, 24498), (9527, 21960), (10248, 20415), (10888, 19215), (10980, 19054), (12249, 17080), (12810, 16332), (13610, 15372)]