20311760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:145

約数の個数: 160

約数和(自身を含む): 59996160

約数和(自身を除く): 39684400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 80, 83, 92, 95, 112, 115, 133, 140, 152, 161, 166, 184, 190, 230, 266, 280, 304, 322, 332, 368, 380, 415, 437, 460, 532, 560, 581, 644, 664, 665, 760, 805, 830, 874, 920, 1064, 1162, 1288, 1328, 1330, 1520, 1577, 1610, 1660, 1748, 1840, 1909, 2128, 2185, 2324, 2576, 2660, 2905, 3059, 3154, 3220, 3320, 3496, 3818, 4370, 4648, 5320, 5810, 6118, 6308, 6440, 6640, 6992, 7636, 7885, 8740, 9296, 9545, 10640, 11039, 11620, 12236, 12616, 12880, 13363, 15272, 15295, 15770, 17480, 19090, 22078, 23240, 24472, 25232, 26726, 30544, 30590, 31540, 34960, 36271, 38180, 44156, 46480, 48944, 53452, 55195, 61180, 63080, 66815, 72542, 76360, 88312, 106904, 110390, 122360, 126160, 133630, 145084, 152720, 176624, 181355, 213808, 220780, 244720, 253897, 267260, 290168, 362710, 441560, 507794, 534520, 580336, 725420, 883120, 1015588, 1069040, 1269485, 1450840, 2031176, 2538970, 2901680, 4062352, 5077940, 10155880, 20311760]

約数ペア:

[(1, 20311760), (2, 10155880), (4, 5077940), (5, 4062352), (7, 2901680), (8, 2538970), (10, 2031176), (14, 1450840), (16, 1269485), (19, 1069040), (20, 1015588), (23, 883120), (28, 725420), (35, 580336), (38, 534520), (40, 507794), (46, 441560), (56, 362710), (70, 290168), (76, 267260), (80, 253897), (83, 244720), (92, 220780), (95, 213808), (112, 181355), (115, 176624), (133, 152720), (140, 145084), (152, 133630), (161, 126160), (166, 122360), (184, 110390), (190, 106904), (230, 88312), (266, 76360), (280, 72542), (304, 66815), (322, 63080), (332, 61180), (368, 55195), (380, 53452), (415, 48944), (437, 46480), (460, 44156), (532, 38180), (560, 36271), (581, 34960), (644, 31540), (664, 30590), (665, 30544), (760, 26726), (805, 25232), (830, 24472), (874, 23240), (920, 22078), (1064, 19090), (1162, 17480), (1288, 15770), (1328, 15295), (1330, 15272), (1520, 13363), (1577, 12880), (1610, 12616), (1660, 12236), (1748, 11620), (1840, 11039), (1909, 10640), (2128, 9545), (2185, 9296), (2324, 8740), (2576, 7885), (2660, 7636), (2905, 6992), (3059, 6640), (3154, 6440), (3220, 6308), (3320, 6118), (3496, 5810), (3818, 5320), (4370, 4648)]