64421968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:252

約数の個数: 80

約数和(自身を含む): 141546496

約数和(自身を除く): 77124528

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 97, 103, 104, 124, 194, 206, 208, 248, 388, 403, 412, 496, 776, 806, 824, 1261, 1339, 1552, 1612, 1648, 2522, 2678, 3007, 3193, 3224, 5044, 5356, 6014, 6386, 6448, 9991, 10088, 10712, 12028, 12772, 19982, 20176, 21424, 24056, 25544, 39091, 39964, 41509, 48112, 51088, 78182, 79928, 83018, 129883, 156364, 159856, 166036, 259766, 309721, 312728, 332072, 519532, 619442, 625456, 664144, 1039064, 1238884, 2078128, 2477768, 4026373, 4955536, 8052746, 16105492, 32210984, 64421968]

約数ペア:

[(1, 64421968), (2, 32210984), (4, 16105492), (8, 8052746), (13, 4955536), (16, 4026373), (26, 2477768), (31, 2078128), (52, 1238884), (62, 1039064), (97, 664144), (103, 625456), (104, 619442), (124, 519532), (194, 332072), (206, 312728), (208, 309721), (248, 259766), (388, 166036), (403, 159856), (412, 156364), (496, 129883), (776, 83018), (806, 79928), (824, 78182), (1261, 51088), (1339, 48112), (1552, 41509), (1612, 39964), (1648, 39091), (2522, 25544), (2678, 24056), (3007, 21424), (3193, 20176), (3224, 19982), (5044, 12772), (5356, 12028), (6014, 10712), (6386, 10088), (6448, 9991)]