28803180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 95721696

約数和(自身を除く): 66918516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 97, 98, 101, 105, 140, 147, 194, 196, 202, 210, 245, 291, 294, 303, 388, 404, 420, 485, 490, 505, 582, 588, 606, 679, 707, 735, 970, 980, 1010, 1164, 1212, 1358, 1414, 1455, 1470, 1515, 1940, 2020, 2037, 2121, 2716, 2828, 2910, 2940, 3030, 3395, 3535, 4074, 4242, 4753, 4949, 5820, 6060, 6790, 7070, 8148, 8484, 9506, 9797, 9898, 10185, 10605, 13580, 14140, 14259, 14847, 19012, 19594, 19796, 20370, 21210, 23765, 24745, 28518, 29391, 29694, 39188, 40740, 42420, 47530, 48985, 49490, 57036, 58782, 59388, 68579, 71295, 74235, 95060, 97970, 98980, 117564, 137158, 142590, 146955, 148470, 195940, 205737, 274316, 285180, 293910, 296940, 342895, 411474, 480053, 587820, 685790, 822948, 960106, 1028685, 1371580, 1440159, 1920212, 2057370, 2400265, 2880318, 4114740, 4800530, 5760636, 7200795, 9601060, 14401590, 28803180]

約数ペア:

[(1, 28803180), (2, 14401590), (3, 9601060), (4, 7200795), (5, 5760636), (6, 4800530), (7, 4114740), (10, 2880318), (12, 2400265), (14, 2057370), (15, 1920212), (20, 1440159), (21, 1371580), (28, 1028685), (30, 960106), (35, 822948), (42, 685790), (49, 587820), (60, 480053), (70, 411474), (84, 342895), (97, 296940), (98, 293910), (101, 285180), (105, 274316), (140, 205737), (147, 195940), (194, 148470), (196, 146955), (202, 142590), (210, 137158), (245, 117564), (291, 98980), (294, 97970), (303, 95060), (388, 74235), (404, 71295), (420, 68579), (485, 59388), (490, 58782), (505, 57036), (582, 49490), (588, 48985), (606, 47530), (679, 42420), (707, 40740), (735, 39188), (970, 29694), (980, 29391), (1010, 28518), (1164, 24745), (1212, 23765), (1358, 21210), (1414, 20370), (1455, 19796), (1470, 19594), (1515, 19012), (1940, 14847), (2020, 14259), (2037, 14140), (2121, 13580), (2716, 10605), (2828, 10185), (2910, 9898), (2940, 9797), (3030, 9506), (3395, 8484), (3535, 8148), (4074, 7070), (4242, 6790), (4753, 6060), (4949, 5820)]