28313880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{911}}^1$

素因数の和:969

約数の個数: 128

約数和(自身を含む): 99809280

約数和(自身を除く): 71495400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 740, 777, 840, 888, 911, 1036, 1110, 1295, 1480, 1554, 1822, 2072, 2220, 2590, 2733, 3108, 3644, 3885, 4440, 4555, 5180, 5466, 6216, 6377, 7288, 7770, 9110, 10360, 10932, 12754, 13665, 15540, 18220, 19131, 21864, 25508, 27330, 31080, 31885, 33707, 36440, 38262, 51016, 54660, 63770, 67414, 76524, 95655, 101121, 109320, 127540, 134828, 153048, 168535, 191310, 202242, 235949, 255080, 269656, 337070, 382620, 404484, 471898, 505605, 674140, 707847, 765240, 808968, 943796, 1011210, 1179745, 1348280, 1415694, 1887592, 2022420, 2359490, 2831388, 3539235, 4044840, 4718980, 5662776, 7078470, 9437960, 14156940, 28313880]

約数ペア:

[(1, 28313880), (2, 14156940), (3, 9437960), (4, 7078470), (5, 5662776), (6, 4718980), (7, 4044840), (8, 3539235), (10, 2831388), (12, 2359490), (14, 2022420), (15, 1887592), (20, 1415694), (21, 1348280), (24, 1179745), (28, 1011210), (30, 943796), (35, 808968), (37, 765240), (40, 707847), (42, 674140), (56, 505605), (60, 471898), (70, 404484), (74, 382620), (84, 337070), (105, 269656), (111, 255080), (120, 235949), (140, 202242), (148, 191310), (168, 168535), (185, 153048), (210, 134828), (222, 127540), (259, 109320), (280, 101121), (296, 95655), (370, 76524), (420, 67414), (444, 63770), (518, 54660), (555, 51016), (740, 38262), (777, 36440), (840, 33707), (888, 31885), (911, 31080), (1036, 27330), (1110, 25508), (1295, 21864), (1480, 19131), (1554, 18220), (1822, 15540), (2072, 13665), (2220, 12754), (2590, 10932), (2733, 10360), (3108, 9110), (3644, 7770), (3885, 7288), (4440, 6377), (4555, 6216), (5180, 5466)]