81060320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 144

約数和(自身を含む): 217183680

約数和(自身を除く): 136123360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 53, 55, 79, 80, 88, 106, 110, 121, 158, 160, 176, 212, 220, 242, 265, 316, 352, 395, 424, 440, 484, 530, 583, 605, 632, 790, 848, 869, 880, 968, 1060, 1166, 1210, 1264, 1580, 1696, 1738, 1760, 1936, 2120, 2332, 2420, 2528, 2915, 3160, 3476, 3872, 4187, 4240, 4345, 4664, 4840, 5830, 6320, 6413, 6952, 8374, 8480, 8690, 9328, 9559, 9680, 11660, 12640, 12826, 13904, 16748, 17380, 18656, 19118, 19360, 20935, 23320, 25652, 27808, 32065, 33496, 34760, 38236, 41870, 46057, 46640, 47795, 51304, 64130, 66992, 69520, 76472, 83740, 92114, 93280, 95590, 102608, 128260, 133984, 139040, 152944, 167480, 184228, 191180, 205216, 230285, 256520, 305888, 334960, 368456, 382360, 460570, 506627, 513040, 669920, 736912, 764720, 921140, 1013254, 1026080, 1473824, 1529440, 1842280, 2026508, 2533135, 3684560, 4053016, 5066270, 7369120, 8106032, 10132540, 16212064, 20265080, 40530160, 81060320]

約数ペア:

[(1, 81060320), (2, 40530160), (4, 20265080), (5, 16212064), (8, 10132540), (10, 8106032), (11, 7369120), (16, 5066270), (20, 4053016), (22, 3684560), (32, 2533135), (40, 2026508), (44, 1842280), (53, 1529440), (55, 1473824), (79, 1026080), (80, 1013254), (88, 921140), (106, 764720), (110, 736912), (121, 669920), (158, 513040), (160, 506627), (176, 460570), (212, 382360), (220, 368456), (242, 334960), (265, 305888), (316, 256520), (352, 230285), (395, 205216), (424, 191180), (440, 184228), (484, 167480), (530, 152944), (583, 139040), (605, 133984), (632, 128260), (790, 102608), (848, 95590), (869, 93280), (880, 92114), (968, 83740), (1060, 76472), (1166, 69520), (1210, 66992), (1264, 64130), (1580, 51304), (1696, 47795), (1738, 46640), (1760, 46057), (1936, 41870), (2120, 38236), (2332, 34760), (2420, 33496), (2528, 32065), (2915, 27808), (3160, 25652), (3476, 23320), (3872, 20935), (4187, 19360), (4240, 19118), (4345, 18656), (4664, 17380), (4840, 16748), (5830, 13904), (6320, 12826), (6413, 12640), (6952, 11660), (8374, 9680), (8480, 9559), (8690, 9328)]