81318160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:381

約数の個数: 160

約数和(自身を含む): 241984512

約数和(自身を除く): 160666352

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 43, 44, 55, 56, 70, 77, 80, 86, 88, 110, 112, 140, 154, 172, 176, 215, 220, 280, 301, 307, 308, 344, 385, 430, 440, 473, 560, 602, 614, 616, 688, 770, 860, 880, 946, 1204, 1228, 1232, 1505, 1535, 1540, 1720, 1892, 2149, 2365, 2408, 2456, 3010, 3070, 3080, 3311, 3377, 3440, 3784, 4298, 4730, 4816, 4912, 6020, 6140, 6160, 6622, 6754, 7568, 8596, 9460, 10745, 12040, 12280, 13201, 13244, 13508, 16555, 16885, 17192, 18920, 21490, 23639, 24080, 24560, 26402, 26488, 27016, 33110, 33770, 34384, 37840, 42980, 47278, 52804, 52976, 54032, 66005, 66220, 67540, 85960, 92407, 94556, 105608, 118195, 132010, 132440, 135080, 145211, 171920, 184814, 189112, 211216, 236390, 264020, 264880, 270160, 290422, 369628, 378224, 462035, 472780, 528040, 580844, 726055, 739256, 924070, 945560, 1016477, 1056080, 1161688, 1452110, 1478512, 1848140, 1891120, 2032954, 2323376, 2904220, 3696280, 4065908, 5082385, 5808440, 7392560, 8131816, 10164770, 11616880, 16263632, 20329540, 40659080, 81318160]

約数ペア:

[(1, 81318160), (2, 40659080), (4, 20329540), (5, 16263632), (7, 11616880), (8, 10164770), (10, 8131816), (11, 7392560), (14, 5808440), (16, 5082385), (20, 4065908), (22, 3696280), (28, 2904220), (35, 2323376), (40, 2032954), (43, 1891120), (44, 1848140), (55, 1478512), (56, 1452110), (70, 1161688), (77, 1056080), (80, 1016477), (86, 945560), (88, 924070), (110, 739256), (112, 726055), (140, 580844), (154, 528040), (172, 472780), (176, 462035), (215, 378224), (220, 369628), (280, 290422), (301, 270160), (307, 264880), (308, 264020), (344, 236390), (385, 211216), (430, 189112), (440, 184814), (473, 171920), (560, 145211), (602, 135080), (614, 132440), (616, 132010), (688, 118195), (770, 105608), (860, 94556), (880, 92407), (946, 85960), (1204, 67540), (1228, 66220), (1232, 66005), (1505, 54032), (1535, 52976), (1540, 52804), (1720, 47278), (1892, 42980), (2149, 37840), (2365, 34384), (2408, 33770), (2456, 33110), (3010, 27016), (3070, 26488), (3080, 26402), (3311, 24560), (3377, 24080), (3440, 23639), (3784, 21490), (4298, 18920), (4730, 17192), (4816, 16885), (4912, 16555), (6020, 13508), (6140, 13244), (6160, 13201), (6622, 12280), (6754, 12040), (7568, 10745), (8596, 9460)]