664870144

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 1380108800

約数和(自身を除く): 715238656

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 199, 248, 256, 398, 421, 496, 796, 842, 992, 1592, 1684, 1984, 3184, 3368, 3968, 6169, 6368, 6736, 7936, 12338, 12736, 13051, 13472, 24676, 25472, 26102, 26944, 49352, 50944, 52204, 53888, 83779, 98704, 104408, 107776, 167558, 197408, 208816, 335116, 394816, 417632, 670232, 789632, 835264, 1340464, 1579264, 1670528, 2597149, 2680928, 3341056, 5194298, 5361856, 10388596, 10723712, 20777192, 21447424, 41554384, 83108768, 166217536, 332435072, 664870144]

約数ペア:

[(1, 664870144), (2, 332435072), (4, 166217536), (8, 83108768), (16, 41554384), (31, 21447424), (32, 20777192), (62, 10723712), (64, 10388596), (124, 5361856), (128, 5194298), (199, 3341056), (248, 2680928), (256, 2597149), (398, 1670528), (421, 1579264), (496, 1340464), (796, 835264), (842, 789632), (992, 670232), (1592, 417632), (1684, 394816), (1984, 335116), (3184, 208816), (3368, 197408), (3968, 167558), (6169, 107776), (6368, 104408), (6736, 98704), (7936, 83779), (12338, 53888), (12736, 52204), (13051, 50944), (13472, 49352), (24676, 26944), (25472, 26102)]