28180680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{577}}^1$

素因数の和:639

約数の個数: 128

約数和(自身を含む): 94884480

約数和(自身を除く): 66703800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 37, 40, 44, 55, 60, 66, 74, 88, 110, 111, 120, 132, 148, 165, 185, 220, 222, 264, 296, 330, 370, 407, 440, 444, 555, 577, 660, 740, 814, 888, 1110, 1154, 1221, 1320, 1480, 1628, 1731, 2035, 2220, 2308, 2442, 2885, 3256, 3462, 4070, 4440, 4616, 4884, 5770, 6105, 6347, 6924, 8140, 8655, 9768, 11540, 12210, 12694, 13848, 16280, 17310, 19041, 21349, 23080, 24420, 25388, 31735, 34620, 38082, 42698, 48840, 50776, 63470, 64047, 69240, 76164, 85396, 95205, 106745, 126940, 128094, 152328, 170792, 190410, 213490, 234839, 253880, 256188, 320235, 380820, 426980, 469678, 512376, 640470, 704517, 761640, 853960, 939356, 1174195, 1280940, 1409034, 1878712, 2348390, 2561880, 2818068, 3522585, 4696780, 5636136, 7045170, 9393560, 14090340, 28180680]

約数ペア:

[(1, 28180680), (2, 14090340), (3, 9393560), (4, 7045170), (5, 5636136), (6, 4696780), (8, 3522585), (10, 2818068), (11, 2561880), (12, 2348390), (15, 1878712), (20, 1409034), (22, 1280940), (24, 1174195), (30, 939356), (33, 853960), (37, 761640), (40, 704517), (44, 640470), (55, 512376), (60, 469678), (66, 426980), (74, 380820), (88, 320235), (110, 256188), (111, 253880), (120, 234839), (132, 213490), (148, 190410), (165, 170792), (185, 152328), (220, 128094), (222, 126940), (264, 106745), (296, 95205), (330, 85396), (370, 76164), (407, 69240), (440, 64047), (444, 63470), (555, 50776), (577, 48840), (660, 42698), (740, 38082), (814, 34620), (888, 31735), (1110, 25388), (1154, 24420), (1221, 23080), (1320, 21349), (1480, 19041), (1628, 17310), (1731, 16280), (2035, 13848), (2220, 12694), (2308, 12210), (2442, 11540), (2885, 9768), (3256, 8655), (3462, 8140), (4070, 6924), (4440, 6347), (4616, 6105), (4884, 5770)]