81858128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 185613120

約数和(自身を除く): 103754992

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 109, 136, 176, 187, 218, 251, 272, 374, 436, 502, 748, 872, 1004, 1199, 1496, 1744, 1853, 2008, 2398, 2761, 2992, 3706, 4016, 4267, 4796, 5522, 7412, 8534, 9592, 11044, 14824, 17068, 19184, 20383, 22088, 27359, 29648, 34136, 40766, 44176, 46937, 54718, 68272, 81532, 93874, 109436, 163064, 187748, 218872, 300949, 326128, 375496, 437744, 465103, 601898, 750992, 930206, 1203796, 1860412, 2407592, 3720824, 4815184, 5116133, 7441648, 10232266, 20464532, 40929064, 81858128]

約数ペア:

[(1, 81858128), (2, 40929064), (4, 20464532), (8, 10232266), (11, 7441648), (16, 5116133), (17, 4815184), (22, 3720824), (34, 2407592), (44, 1860412), (68, 1203796), (88, 930206), (109, 750992), (136, 601898), (176, 465103), (187, 437744), (218, 375496), (251, 326128), (272, 300949), (374, 218872), (436, 187748), (502, 163064), (748, 109436), (872, 93874), (1004, 81532), (1199, 68272), (1496, 54718), (1744, 46937), (1853, 44176), (2008, 40766), (2398, 34136), (2761, 29648), (2992, 27359), (3706, 22088), (4016, 20383), (4267, 19184), (4796, 17068), (5522, 14824), (7412, 11044), (8534, 9592)]