28876680

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1637}}^1$

素因数の和:1668

約数の個数: 144

約数和(自身を含む): 109238220

約数和(自身を除く): 80361540

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, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1637, 1764, 1960, 2205, 2520, 2940, 3274, 3528, 4410, 4911, 5880, 6548, 8185, 8820, 9822, 11459, 13096, 14733, 16370, 17640, 19644, 22918, 24555, 29466, 32740, 34377, 39288, 45836, 49110, 57295, 58932, 65480, 68754, 73665, 80213, 91672, 98220, 103131, 114590, 117864, 137508, 147330, 160426, 171885, 196440, 206262, 229180, 240639, 275016, 294660, 320852, 343770, 401065, 412524, 458360, 481278, 515655, 589320, 641704, 687540, 721917, 802130, 825048, 962556, 1031310, 1203195, 1375080, 1443834, 1604260, 1925112, 2062620, 2406390, 2887668, 3208520, 3609585, 4125240, 4812780, 5775336, 7219170, 9625560, 14438340, 28876680]

約数ペア:

[(1, 28876680), (2, 14438340), (3, 9625560), (4, 7219170), (5, 5775336), (6, 4812780), (7, 4125240), (8, 3609585), (9, 3208520), (10, 2887668), (12, 2406390), (14, 2062620), (15, 1925112), (18, 1604260), (20, 1443834), (21, 1375080), (24, 1203195), (28, 1031310), (30, 962556), (35, 825048), (36, 802130), (40, 721917), (42, 687540), (45, 641704), (49, 589320), (56, 515655), (60, 481278), (63, 458360), (70, 412524), (72, 401065), (84, 343770), (90, 320852), (98, 294660), (105, 275016), (120, 240639), (126, 229180), (140, 206262), (147, 196440), (168, 171885), (180, 160426), (196, 147330), (210, 137508), (245, 117864), (252, 114590), (280, 103131), (294, 98220), (315, 91672), (360, 80213), (392, 73665), (420, 68754), (441, 65480), (490, 58932), (504, 57295), (588, 49110), (630, 45836), (735, 39288), (840, 34377), (882, 32740), (980, 29466), (1176, 24555), (1260, 22918), (1470, 19644), (1637, 17640), (1764, 16370), (1960, 14733), (2205, 13096), (2520, 11459), (2940, 9822), (3274, 8820), (3528, 8185), (4410, 6548), (4911, 5880)]