81738072

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:375

約数の個数: 160

約数和(自身を含む): 255319680

約数和(自身を除く): 173581608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 31, 36, 39, 52, 54, 62, 72, 78, 81, 93, 104, 108, 117, 124, 156, 162, 186, 216, 234, 248, 279, 312, 313, 324, 351, 372, 403, 468, 558, 626, 648, 702, 744, 806, 837, 936, 939, 1053, 1116, 1209, 1252, 1404, 1612, 1674, 1878, 2106, 2232, 2418, 2504, 2511, 2808, 2817, 3224, 3348, 3627, 3756, 4069, 4212, 4836, 5022, 5634, 6696, 7254, 7512, 8138, 8424, 8451, 9672, 9703, 10044, 10881, 11268, 12207, 14508, 16276, 16902, 19406, 20088, 21762, 22536, 24414, 25353, 29016, 29109, 32552, 32643, 33804, 36621, 38812, 43524, 48828, 50706, 58218, 65286, 67608, 73242, 77624, 87048, 87327, 97656, 101412, 109863, 116436, 126139, 130572, 146484, 174654, 202824, 219726, 232872, 252278, 261144, 261981, 292968, 329589, 349308, 378417, 439452, 504556, 523962, 659178, 698616, 756834, 785943, 878904, 1009112, 1047924, 1135251, 1318356, 1513668, 1571886, 2095848, 2270502, 2636712, 3027336, 3143772, 3405753, 4541004, 6287544, 6811506, 9082008, 10217259, 13623012, 20434518, 27246024, 40869036, 81738072]

約数ペア:

[(1, 81738072), (2, 40869036), (3, 27246024), (4, 20434518), (6, 13623012), (8, 10217259), (9, 9082008), (12, 6811506), (13, 6287544), (18, 4541004), (24, 3405753), (26, 3143772), (27, 3027336), (31, 2636712), (36, 2270502), (39, 2095848), (52, 1571886), (54, 1513668), (62, 1318356), (72, 1135251), (78, 1047924), (81, 1009112), (93, 878904), (104, 785943), (108, 756834), (117, 698616), (124, 659178), (156, 523962), (162, 504556), (186, 439452), (216, 378417), (234, 349308), (248, 329589), (279, 292968), (312, 261981), (313, 261144), (324, 252278), (351, 232872), (372, 219726), (403, 202824), (468, 174654), (558, 146484), (626, 130572), (648, 126139), (702, 116436), (744, 109863), (806, 101412), (837, 97656), (936, 87327), (939, 87048), (1053, 77624), (1116, 73242), (1209, 67608), (1252, 65286), (1404, 58218), (1612, 50706), (1674, 48828), (1878, 43524), (2106, 38812), (2232, 36621), (2418, 33804), (2504, 32643), (2511, 32552), (2808, 29109), (2817, 29016), (3224, 25353), (3348, 24414), (3627, 22536), (3756, 21762), (4069, 20088), (4212, 19406), (4836, 16902), (5022, 16276), (5634, 14508), (6696, 12207), (7254, 11268), (7512, 10881), (8138, 10044), (8424, 9703), (8451, 9672)]