81556160

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1583}}^1$

素因数の和:1630

約数の個数: 112

約数和(自身を含む): 231745536

約数和(自身を除く): 150189376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 448, 460, 560, 644, 736, 805, 920, 1120, 1288, 1472, 1583, 1610, 1840, 2240, 2576, 3166, 3220, 3680, 5152, 6332, 6440, 7360, 7915, 10304, 11081, 12664, 12880, 15830, 22162, 25328, 25760, 31660, 36409, 44324, 50656, 51520, 55405, 63320, 72818, 88648, 101312, 110810, 126640, 145636, 177296, 182045, 221620, 253280, 254863, 291272, 354592, 364090, 443240, 506560, 509726, 582544, 709184, 728180, 886480, 1019452, 1165088, 1274315, 1456360, 1772960, 2038904, 2330176, 2548630, 2912720, 3545920, 4077808, 5097260, 5825440, 8155616, 10194520, 11650880, 16311232, 20389040, 40778080, 81556160]

約数ペア:

[(1, 81556160), (2, 40778080), (4, 20389040), (5, 16311232), (7, 11650880), (8, 10194520), (10, 8155616), (14, 5825440), (16, 5097260), (20, 4077808), (23, 3545920), (28, 2912720), (32, 2548630), (35, 2330176), (40, 2038904), (46, 1772960), (56, 1456360), (64, 1274315), (70, 1165088), (80, 1019452), (92, 886480), (112, 728180), (115, 709184), (140, 582544), (160, 509726), (161, 506560), (184, 443240), (224, 364090), (230, 354592), (280, 291272), (320, 254863), (322, 253280), (368, 221620), (448, 182045), (460, 177296), (560, 145636), (644, 126640), (736, 110810), (805, 101312), (920, 88648), (1120, 72818), (1288, 63320), (1472, 55405), (1583, 51520), (1610, 50656), (1840, 44324), (2240, 36409), (2576, 31660), (3166, 25760), (3220, 25328), (3680, 22162), (5152, 15830), (6332, 12880), (6440, 12664), (7360, 11081), (7915, 10304)]