20789028

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:123

約数の個数: 144

約数和(自身を含む): 62717760

約数和(自身を除く): 41928732

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 27, 34, 36, 39, 51, 52, 54, 67, 68, 78, 102, 108, 117, 134, 153, 156, 169, 201, 204, 221, 234, 268, 306, 338, 351, 402, 442, 459, 468, 507, 603, 612, 663, 676, 702, 804, 871, 884, 918, 1014, 1139, 1206, 1326, 1404, 1521, 1742, 1809, 1836, 1989, 2028, 2278, 2412, 2613, 2652, 2873, 3042, 3417, 3484, 3618, 3978, 4556, 4563, 5226, 5746, 5967, 6084, 6834, 7236, 7839, 7956, 8619, 9126, 10251, 10452, 11323, 11492, 11934, 13668, 14807, 15678, 17238, 18252, 20502, 22646, 23517, 23868, 25857, 29614, 30753, 31356, 33969, 34476, 41004, 44421, 45292, 47034, 51714, 59228, 61506, 67938, 77571, 88842, 94068, 101907, 103428, 123012, 133263, 135876, 155142, 177684, 192491, 203814, 266526, 305721, 310284, 384982, 399789, 407628, 533052, 577473, 611442, 769964, 799578, 1154946, 1222884, 1599156, 1732419, 2309892, 3464838, 5197257, 6929676, 10394514, 20789028]

約数ペア:

[(1, 20789028), (2, 10394514), (3, 6929676), (4, 5197257), (6, 3464838), (9, 2309892), (12, 1732419), (13, 1599156), (17, 1222884), (18, 1154946), (26, 799578), (27, 769964), (34, 611442), (36, 577473), (39, 533052), (51, 407628), (52, 399789), (54, 384982), (67, 310284), (68, 305721), (78, 266526), (102, 203814), (108, 192491), (117, 177684), (134, 155142), (153, 135876), (156, 133263), (169, 123012), (201, 103428), (204, 101907), (221, 94068), (234, 88842), (268, 77571), (306, 67938), (338, 61506), (351, 59228), (402, 51714), (442, 47034), (459, 45292), (468, 44421), (507, 41004), (603, 34476), (612, 33969), (663, 31356), (676, 30753), (702, 29614), (804, 25857), (871, 23868), (884, 23517), (918, 22646), (1014, 20502), (1139, 18252), (1206, 17238), (1326, 15678), (1404, 14807), (1521, 13668), (1742, 11934), (1809, 11492), (1836, 11323), (1989, 10452), (2028, 10251), (2278, 9126), (2412, 8619), (2613, 7956), (2652, 7839), (2873, 7236), (3042, 6834), (3417, 6084), (3484, 5967), (3618, 5746), (3978, 5226), (4556, 4563)]