640584

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:91

約数の個数: 96

約数和(自身を含む): 2096640

約数和(自身を除く): 1456056

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 31, 36, 41, 42, 56, 62, 63, 72, 82, 84, 93, 123, 124, 126, 164, 168, 186, 217, 246, 248, 252, 279, 287, 328, 369, 372, 434, 492, 504, 558, 574, 651, 738, 744, 861, 868, 984, 1116, 1148, 1271, 1302, 1476, 1722, 1736, 1953, 2232, 2296, 2542, 2583, 2604, 2952, 3444, 3813, 3906, 5084, 5166, 5208, 6888, 7626, 7812, 8897, 10168, 10332, 11439, 15252, 15624, 17794, 20664, 22878, 26691, 30504, 35588, 45756, 53382, 71176, 80073, 91512, 106764, 160146, 213528, 320292, 640584]

約数ペア:

[(1, 640584), (2, 320292), (3, 213528), (4, 160146), (6, 106764), (7, 91512), (8, 80073), (9, 71176), (12, 53382), (14, 45756), (18, 35588), (21, 30504), (24, 26691), (28, 22878), (31, 20664), (36, 17794), (41, 15624), (42, 15252), (56, 11439), (62, 10332), (63, 10168), (72, 8897), (82, 7812), (84, 7626), (93, 6888), (123, 5208), (124, 5166), (126, 5084), (164, 3906), (168, 3813), (186, 3444), (217, 2952), (246, 2604), (248, 2583), (252, 2542), (279, 2296), (287, 2232), (328, 1953), (369, 1736), (372, 1722), (434, 1476), (492, 1302), (504, 1271), (558, 1148), (574, 1116), (651, 984), (738, 868), (744, 861)]