30855720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{337}}^1$

素因数の和:467

約数の個数: 128

約数和(自身を含む): 107078400

約数和(自身を除く): 76222680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 109, 120, 140, 168, 210, 218, 280, 327, 337, 420, 436, 545, 654, 674, 763, 840, 872, 1011, 1090, 1308, 1348, 1526, 1635, 1685, 2022, 2180, 2289, 2359, 2616, 2696, 3052, 3270, 3370, 3815, 4044, 4360, 4578, 4718, 5055, 6104, 6540, 6740, 7077, 7630, 8088, 9156, 9436, 10110, 11445, 11795, 13080, 13480, 14154, 15260, 18312, 18872, 20220, 22890, 23590, 28308, 30520, 35385, 36733, 40440, 45780, 47180, 56616, 70770, 73466, 91560, 94360, 110199, 141540, 146932, 183665, 220398, 257131, 283080, 293864, 367330, 440796, 514262, 550995, 734660, 771393, 881592, 1028524, 1101990, 1285655, 1469320, 1542786, 2057048, 2203980, 2571310, 3085572, 3856965, 4407960, 5142620, 6171144, 7713930, 10285240, 15427860, 30855720]

約数ペア:

[(1, 30855720), (2, 15427860), (3, 10285240), (4, 7713930), (5, 6171144), (6, 5142620), (7, 4407960), (8, 3856965), (10, 3085572), (12, 2571310), (14, 2203980), (15, 2057048), (20, 1542786), (21, 1469320), (24, 1285655), (28, 1101990), (30, 1028524), (35, 881592), (40, 771393), (42, 734660), (56, 550995), (60, 514262), (70, 440796), (84, 367330), (105, 293864), (109, 283080), (120, 257131), (140, 220398), (168, 183665), (210, 146932), (218, 141540), (280, 110199), (327, 94360), (337, 91560), (420, 73466), (436, 70770), (545, 56616), (654, 47180), (674, 45780), (763, 40440), (840, 36733), (872, 35385), (1011, 30520), (1090, 28308), (1308, 23590), (1348, 22890), (1526, 20220), (1635, 18872), (1685, 18312), (2022, 15260), (2180, 14154), (2289, 13480), (2359, 13080), (2616, 11795), (2696, 11445), (3052, 10110), (3270, 9436), (3370, 9156), (3815, 8088), (4044, 7630), (4360, 7077), (4578, 6740), (4718, 6540), (5055, 6104)]