81913728

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:360

約数の個数: 128

約数和(自身を含む): 239047200

約数和(自身を除く): 157133472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 61, 64, 78, 96, 104, 122, 128, 156, 183, 192, 208, 244, 269, 312, 366, 384, 416, 488, 538, 624, 732, 793, 807, 832, 976, 1076, 1248, 1464, 1586, 1614, 1664, 1952, 2152, 2379, 2496, 2928, 3172, 3228, 3497, 3904, 4304, 4758, 4992, 5856, 6344, 6456, 6994, 7808, 8608, 9516, 10491, 11712, 12688, 12912, 13988, 16409, 17216, 19032, 20982, 23424, 25376, 25824, 27976, 32818, 34432, 38064, 41964, 49227, 50752, 51648, 55952, 65636, 76128, 83928, 98454, 101504, 103296, 111904, 131272, 152256, 167856, 196908, 213317, 223808, 262544, 304512, 335712, 393816, 426634, 447616, 525088, 639951, 671424, 787632, 853268, 1050176, 1279902, 1342848, 1575264, 1706536, 2100352, 2559804, 3150528, 3413072, 5119608, 6301056, 6826144, 10239216, 13652288, 20478432, 27304576, 40956864, 81913728]

約数ペア:

[(1, 81913728), (2, 40956864), (3, 27304576), (4, 20478432), (6, 13652288), (8, 10239216), (12, 6826144), (13, 6301056), (16, 5119608), (24, 3413072), (26, 3150528), (32, 2559804), (39, 2100352), (48, 1706536), (52, 1575264), (61, 1342848), (64, 1279902), (78, 1050176), (96, 853268), (104, 787632), (122, 671424), (128, 639951), (156, 525088), (183, 447616), (192, 426634), (208, 393816), (244, 335712), (269, 304512), (312, 262544), (366, 223808), (384, 213317), (416, 196908), (488, 167856), (538, 152256), (624, 131272), (732, 111904), (793, 103296), (807, 101504), (832, 98454), (976, 83928), (1076, 76128), (1248, 65636), (1464, 55952), (1586, 51648), (1614, 50752), (1664, 49227), (1952, 41964), (2152, 38064), (2379, 34432), (2496, 32818), (2928, 27976), (3172, 25824), (3228, 25376), (3497, 23424), (3904, 20982), (4304, 19032), (4758, 17216), (4992, 16409), (5856, 13988), (6344, 12912), (6456, 12688), (6994, 11712), (7808, 10491), (8608, 9516)]