278964

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{41}}^1$

素因数の和:67

約数の個数: 72

約数和(自身を含む): 856128

約数和(自身を除く): 577164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 41, 42, 54, 63, 81, 82, 84, 108, 123, 126, 162, 164, 189, 243, 246, 252, 287, 324, 369, 378, 486, 492, 567, 574, 738, 756, 861, 972, 1107, 1134, 1148, 1476, 1701, 1722, 2214, 2268, 2583, 3321, 3402, 3444, 4428, 5166, 6642, 6804, 7749, 9963, 10332, 13284, 15498, 19926, 23247, 30996, 39852, 46494, 69741, 92988, 139482, 278964]

約数ペア:

[(1, 278964), (2, 139482), (3, 92988), (4, 69741), (6, 46494), (7, 39852), (9, 30996), (12, 23247), (14, 19926), (18, 15498), (21, 13284), (27, 10332), (28, 9963), (36, 7749), (41, 6804), (42, 6642), (54, 5166), (63, 4428), (81, 3444), (82, 3402), (84, 3321), (108, 2583), (123, 2268), (126, 2214), (162, 1722), (164, 1701), (189, 1476), (243, 1148), (246, 1134), (252, 1107), (287, 972), (324, 861), (369, 756), (378, 738), (486, 574), (492, 567)]