71921920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 206035200

約数和(自身を除く): 134113280

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, 128, 140, 160, 161, 184, 224, 230, 256, 280, 320, 322, 349, 368, 448, 460, 560, 640, 644, 698, 736, 805, 896, 920, 1120, 1280, 1288, 1396, 1472, 1610, 1745, 1792, 1840, 2240, 2443, 2576, 2792, 2944, 3220, 3490, 3680, 4480, 4886, 5152, 5584, 5888, 6440, 6980, 7360, 8027, 8960, 9772, 10304, 11168, 12215, 12880, 13960, 14720, 16054, 19544, 20608, 22336, 24430, 25760, 27920, 29440, 32108, 39088, 40135, 41216, 44672, 48860, 51520, 55840, 56189, 64216, 78176, 80270, 89344, 97720, 103040, 111680, 112378, 128432, 156352, 160540, 195440, 206080, 223360, 224756, 256864, 280945, 312704, 321080, 390880, 446720, 449512, 513728, 561890, 625408, 642160, 781760, 899024, 1027456, 1123780, 1284320, 1563520, 1798048, 2054912, 2247560, 2568640, 3127040, 3596096, 4495120, 5137280, 7192192, 8990240, 10274560, 14384384, 17980480, 35960960, 71921920]

約数ペア:

[(1, 71921920), (2, 35960960), (4, 17980480), (5, 14384384), (7, 10274560), (8, 8990240), (10, 7192192), (14, 5137280), (16, 4495120), (20, 3596096), (23, 3127040), (28, 2568640), (32, 2247560), (35, 2054912), (40, 1798048), (46, 1563520), (56, 1284320), (64, 1123780), (70, 1027456), (80, 899024), (92, 781760), (112, 642160), (115, 625408), (128, 561890), (140, 513728), (160, 449512), (161, 446720), (184, 390880), (224, 321080), (230, 312704), (256, 280945), (280, 256864), (320, 224756), (322, 223360), (349, 206080), (368, 195440), (448, 160540), (460, 156352), (560, 128432), (640, 112378), (644, 111680), (698, 103040), (736, 97720), (805, 89344), (896, 80270), (920, 78176), (1120, 64216), (1280, 56189), (1288, 55840), (1396, 51520), (1472, 48860), (1610, 44672), (1745, 41216), (1792, 40135), (1840, 39088), (2240, 32108), (2443, 29440), (2576, 27920), (2792, 25760), (2944, 24430), (3220, 22336), (3490, 20608), (3680, 19544), (4480, 16054), (4886, 14720), (5152, 13960), (5584, 12880), (5888, 12215), (6440, 11168), (6980, 10304), (7360, 9772), (8027, 8960)]