81997392

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:325

約数の個数: 120

約数和(自身を含む): 235717056

約数和(自身を除く): 153719664

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 23, 24, 34, 46, 48, 51, 68, 69, 92, 102, 136, 138, 184, 204, 257, 272, 276, 289, 368, 391, 408, 514, 552, 578, 771, 782, 816, 867, 1028, 1104, 1156, 1173, 1542, 1564, 1734, 2056, 2312, 2346, 3084, 3128, 3468, 4112, 4369, 4624, 4692, 5911, 6168, 6256, 6647, 6936, 8738, 9384, 11822, 12336, 13107, 13294, 13872, 17476, 17733, 18768, 19941, 23644, 26214, 26588, 34952, 35466, 39882, 47288, 52428, 53176, 69904, 70932, 74273, 79764, 94576, 100487, 104856, 106352, 141864, 148546, 159528, 200974, 209712, 222819, 283728, 297092, 301461, 319056, 401948, 445638, 594184, 602922, 803896, 891276, 1188368, 1205844, 1607792, 1708279, 1782552, 2411688, 3416558, 3565104, 4823376, 5124837, 6833116, 10249674, 13666232, 20499348, 27332464, 40998696, 81997392]

約数ペア:

[(1, 81997392), (2, 40998696), (3, 27332464), (4, 20499348), (6, 13666232), (8, 10249674), (12, 6833116), (16, 5124837), (17, 4823376), (23, 3565104), (24, 3416558), (34, 2411688), (46, 1782552), (48, 1708279), (51, 1607792), (68, 1205844), (69, 1188368), (92, 891276), (102, 803896), (136, 602922), (138, 594184), (184, 445638), (204, 401948), (257, 319056), (272, 301461), (276, 297092), (289, 283728), (368, 222819), (391, 209712), (408, 200974), (514, 159528), (552, 148546), (578, 141864), (771, 106352), (782, 104856), (816, 100487), (867, 94576), (1028, 79764), (1104, 74273), (1156, 70932), (1173, 69904), (1542, 53176), (1564, 52428), (1734, 47288), (2056, 39882), (2312, 35466), (2346, 34952), (3084, 26588), (3128, 26214), (3468, 23644), (4112, 19941), (4369, 18768), (4624, 17733), (4692, 17476), (5911, 13872), (6168, 13294), (6256, 13107), (6647, 12336), (6936, 11822), (8738, 9384)]