278114144

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:401

約数の個数: 144

約数和(自身を含む): 712147968

約数和(自身を除く): 434033824

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 32, 44, 56, 62, 77, 88, 112, 121, 124, 154, 176, 217, 224, 242, 248, 308, 331, 341, 352, 434, 484, 496, 616, 662, 682, 847, 868, 968, 992, 1232, 1324, 1364, 1694, 1736, 1936, 2317, 2387, 2464, 2648, 2728, 3388, 3472, 3641, 3751, 3872, 4634, 4774, 5296, 5456, 6776, 6944, 7282, 7502, 9268, 9548, 10261, 10592, 10912, 13552, 14564, 15004, 18536, 19096, 20522, 25487, 26257, 27104, 29128, 30008, 37072, 38192, 40051, 41044, 50974, 52514, 58256, 60016, 71827, 74144, 76384, 80102, 82088, 101948, 105028, 112871, 116512, 120032, 143654, 160204, 164176, 203896, 210056, 225742, 280357, 287308, 320408, 328352, 407792, 420112, 451484, 560714, 574616, 640816, 790097, 815584, 840224, 902968, 1121428, 1149232, 1241581, 1281632, 1580194, 1805936, 2242856, 2298464, 2483162, 3160388, 3611872, 4485712, 4966324, 6320776, 8691067, 8971424, 9932648, 12641552, 17382134, 19865296, 25283104, 34764268, 39730592, 69528536, 139057072, 278114144]

約数ペア:

[(1, 278114144), (2, 139057072), (4, 69528536), (7, 39730592), (8, 34764268), (11, 25283104), (14, 19865296), (16, 17382134), (22, 12641552), (28, 9932648), (31, 8971424), (32, 8691067), (44, 6320776), (56, 4966324), (62, 4485712), (77, 3611872), (88, 3160388), (112, 2483162), (121, 2298464), (124, 2242856), (154, 1805936), (176, 1580194), (217, 1281632), (224, 1241581), (242, 1149232), (248, 1121428), (308, 902968), (331, 840224), (341, 815584), (352, 790097), (434, 640816), (484, 574616), (496, 560714), (616, 451484), (662, 420112), (682, 407792), (847, 328352), (868, 320408), (968, 287308), (992, 280357), (1232, 225742), (1324, 210056), (1364, 203896), (1694, 164176), (1736, 160204), (1936, 143654), (2317, 120032), (2387, 116512), (2464, 112871), (2648, 105028), (2728, 101948), (3388, 82088), (3472, 80102), (3641, 76384), (3751, 74144), (3872, 71827), (4634, 60016), (4774, 58256), (5296, 52514), (5456, 50974), (6776, 41044), (6944, 40051), (7282, 38192), (7502, 37072), (9268, 30008), (9548, 29128), (10261, 27104), (10592, 26257), (10912, 25487), (13552, 20522), (14564, 19096), (15004, 18536)]