81578016

素因数分解:

$2^5\times 3^6\times {\mathrm{13}}^1\times {\mathrm{269}}^1$

素因数の和:310

約数の個数: 168

約数和(自身を含む): 260287020

約数和(自身を除く): 178709004

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 208, 216, 234, 243, 269, 288, 312, 324, 351, 416, 432, 468, 486, 538, 624, 648, 702, 729, 807, 864, 936, 972, 1053, 1076, 1248, 1296, 1404, 1458, 1614, 1872, 1944, 2106, 2152, 2421, 2592, 2808, 2916, 3159, 3228, 3497, 3744, 3888, 4212, 4304, 4842, 5616, 5832, 6318, 6456, 6994, 7263, 7776, 8424, 8608, 9477, 9684, 10491, 11232, 11664, 12636, 12912, 13988, 14526, 16848, 18954, 19368, 20982, 21789, 23328, 25272, 25824, 27976, 29052, 31473, 33696, 37908, 38736, 41964, 43578, 50544, 55952, 58104, 62946, 65367, 75816, 77472, 83928, 87156, 94419, 101088, 111904, 116208, 125892, 130734, 151632, 167856, 174312, 188838, 196101, 232416, 251784, 261468, 283257, 303264, 335712, 348624, 377676, 392202, 503568, 522936, 566514, 697248, 755352, 784404, 849771, 1007136, 1045872, 1133028, 1510704, 1568808, 1699542, 2091744, 2266056, 2549313, 3021408, 3137616, 3399084, 4532112, 5098626, 6275232, 6798168, 9064224, 10197252, 13596336, 20394504, 27192672, 40789008, 81578016]

約数ペア:

[(1, 81578016), (2, 40789008), (3, 27192672), (4, 20394504), (6, 13596336), (8, 10197252), (9, 9064224), (12, 6798168), (13, 6275232), (16, 5098626), (18, 4532112), (24, 3399084), (26, 3137616), (27, 3021408), (32, 2549313), (36, 2266056), (39, 2091744), (48, 1699542), (52, 1568808), (54, 1510704), (72, 1133028), (78, 1045872), (81, 1007136), (96, 849771), (104, 784404), (108, 755352), (117, 697248), (144, 566514), (156, 522936), (162, 503568), (208, 392202), (216, 377676), (234, 348624), (243, 335712), (269, 303264), (288, 283257), (312, 261468), (324, 251784), (351, 232416), (416, 196101), (432, 188838), (468, 174312), (486, 167856), (538, 151632), (624, 130734), (648, 125892), (702, 116208), (729, 111904), (807, 101088), (864, 94419), (936, 87156), (972, 83928), (1053, 77472), (1076, 75816), (1248, 65367), (1296, 62946), (1404, 58104), (1458, 55952), (1614, 50544), (1872, 43578), (1944, 41964), (2106, 38736), (2152, 37908), (2421, 33696), (2592, 31473), (2808, 29052), (2916, 27976), (3159, 25824), (3228, 25272), (3497, 23328), (3744, 21789), (3888, 20982), (4212, 19368), (4304, 18954), (4842, 16848), (5616, 14526), (5832, 13988), (6318, 12912), (6456, 12636), (6994, 11664), (7263, 11232), (7776, 10491), (8424, 9684), (8608, 9477)]