81741240

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:386

約数の個数: 192

約数和(自身を含む): 307008000

約数和(自身を除く): 225266760

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, 63, 70, 72, 84, 90, 105, 120, 126, 140, 163, 168, 180, 199, 210, 252, 280, 315, 326, 360, 398, 420, 489, 504, 597, 630, 652, 796, 815, 840, 978, 995, 1141, 1194, 1260, 1304, 1393, 1467, 1592, 1630, 1791, 1956, 1990, 2282, 2388, 2445, 2520, 2786, 2934, 2985, 3260, 3423, 3582, 3912, 3980, 4179, 4564, 4776, 4890, 5572, 5705, 5868, 5970, 6520, 6846, 6965, 7164, 7335, 7960, 8358, 8955, 9128, 9780, 10269, 11144, 11410, 11736, 11940, 12537, 13692, 13930, 14328, 14670, 16716, 17115, 17910, 19560, 20538, 20895, 22820, 23880, 25074, 27384, 27860, 29340, 32437, 33432, 34230, 35820, 41076, 41790, 45640, 50148, 51345, 55720, 58680, 62685, 64874, 68460, 71640, 82152, 83580, 97311, 100296, 102690, 125370, 129748, 136920, 162185, 167160, 194622, 205380, 227059, 250740, 259496, 291933, 324370, 389244, 410760, 454118, 486555, 501480, 583866, 648740, 681177, 778488, 908236, 973110, 1135295, 1167732, 1297480, 1362354, 1459665, 1816472, 1946220, 2043531, 2270590, 2335464, 2724708, 2919330, 3405885, 3892440, 4087062, 4541180, 5449416, 5838660, 6811770, 8174124, 9082360, 10217655, 11677320, 13623540, 16348248, 20435310, 27247080, 40870620, 81741240]

約数ペア:

[(1, 81741240), (2, 40870620), (3, 27247080), (4, 20435310), (5, 16348248), (6, 13623540), (7, 11677320), (8, 10217655), (9, 9082360), (10, 8174124), (12, 6811770), (14, 5838660), (15, 5449416), (18, 4541180), (20, 4087062), (21, 3892440), (24, 3405885), (28, 2919330), (30, 2724708), (35, 2335464), (36, 2270590), (40, 2043531), (42, 1946220), (45, 1816472), (56, 1459665), (60, 1362354), (63, 1297480), (70, 1167732), (72, 1135295), (84, 973110), (90, 908236), (105, 778488), (120, 681177), (126, 648740), (140, 583866), (163, 501480), (168, 486555), (180, 454118), (199, 410760), (210, 389244), (252, 324370), (280, 291933), (315, 259496), (326, 250740), (360, 227059), (398, 205380), (420, 194622), (489, 167160), (504, 162185), (597, 136920), (630, 129748), (652, 125370), (796, 102690), (815, 100296), (840, 97311), (978, 83580), (995, 82152), (1141, 71640), (1194, 68460), (1260, 64874), (1304, 62685), (1393, 58680), (1467, 55720), (1592, 51345), (1630, 50148), (1791, 45640), (1956, 41790), (1990, 41076), (2282, 35820), (2388, 34230), (2445, 33432), (2520, 32437), (2786, 29340), (2934, 27860), (2985, 27384), (3260, 25074), (3423, 23880), (3582, 22820), (3912, 20895), (3980, 20538), (4179, 19560), (4564, 17910), (4776, 17115), (4890, 16716), (5572, 14670), (5705, 14328), (5868, 13930), (5970, 13692), (6520, 12537), (6846, 11940), (6965, 11736), (7164, 11410), (7335, 11144), (7960, 10269), (8358, 9780), (8955, 9128)]