80320256

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 171696000

約数和(自身を除く): 91375744

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 64, 116, 124, 128, 232, 248, 256, 349, 464, 496, 698, 899, 928, 992, 1396, 1798, 1856, 1984, 2792, 3596, 3712, 3968, 5584, 7192, 7424, 7936, 10121, 10819, 11168, 14384, 20242, 21638, 22336, 28768, 40484, 43276, 44672, 57536, 80968, 86552, 89344, 115072, 161936, 173104, 230144, 313751, 323872, 346208, 627502, 647744, 692416, 1255004, 1295488, 1384832, 2510008, 2590976, 2769664, 5020016, 10040032, 20080064, 40160128, 80320256]

約数ペア:

[(1, 80320256), (2, 40160128), (4, 20080064), (8, 10040032), (16, 5020016), (29, 2769664), (31, 2590976), (32, 2510008), (58, 1384832), (62, 1295488), (64, 1255004), (116, 692416), (124, 647744), (128, 627502), (232, 346208), (248, 323872), (256, 313751), (349, 230144), (464, 173104), (496, 161936), (698, 115072), (899, 89344), (928, 86552), (992, 80968), (1396, 57536), (1798, 44672), (1856, 43276), (1984, 40484), (2792, 28768), (3596, 22336), (3712, 21638), (3968, 20242), (5584, 14384), (7192, 11168), (7424, 10819), (7936, 10121)]