285617920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:406

約数の個数: 144

約数和(自身を含む): 791175168

約数和(自身を除く): 505557248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 127, 128, 140, 160, 224, 251, 254, 256, 280, 320, 448, 502, 508, 560, 635, 640, 889, 896, 1004, 1016, 1120, 1255, 1270, 1280, 1757, 1778, 1792, 2008, 2032, 2240, 2510, 2540, 3514, 3556, 4016, 4064, 4445, 4480, 5020, 5080, 7028, 7112, 8032, 8128, 8785, 8890, 8960, 10040, 10160, 14056, 14224, 16064, 16256, 17570, 17780, 20080, 20320, 28112, 28448, 31877, 32128, 32512, 35140, 35560, 40160, 40640, 56224, 56896, 63754, 64256, 70280, 71120, 80320, 81280, 112448, 113792, 127508, 140560, 142240, 159385, 160640, 162560, 223139, 224896, 227584, 255016, 281120, 284480, 318770, 321280, 446278, 449792, 510032, 562240, 568960, 637540, 892556, 1020064, 1115695, 1124480, 1137920, 1275080, 1785112, 2040128, 2231390, 2248960, 2550160, 3570224, 4080256, 4462780, 5100320, 7140448, 8160512, 8925560, 10200640, 14280896, 17851120, 20401280, 28561792, 35702240, 40802560, 57123584, 71404480, 142808960, 285617920]

約数ペア:

[(1, 285617920), (2, 142808960), (4, 71404480), (5, 57123584), (7, 40802560), (8, 35702240), (10, 28561792), (14, 20401280), (16, 17851120), (20, 14280896), (28, 10200640), (32, 8925560), (35, 8160512), (40, 7140448), (56, 5100320), (64, 4462780), (70, 4080256), (80, 3570224), (112, 2550160), (127, 2248960), (128, 2231390), (140, 2040128), (160, 1785112), (224, 1275080), (251, 1137920), (254, 1124480), (256, 1115695), (280, 1020064), (320, 892556), (448, 637540), (502, 568960), (508, 562240), (560, 510032), (635, 449792), (640, 446278), (889, 321280), (896, 318770), (1004, 284480), (1016, 281120), (1120, 255016), (1255, 227584), (1270, 224896), (1280, 223139), (1757, 162560), (1778, 160640), (1792, 159385), (2008, 142240), (2032, 140560), (2240, 127508), (2510, 113792), (2540, 112448), (3514, 81280), (3556, 80320), (4016, 71120), (4064, 70280), (4445, 64256), (4480, 63754), (5020, 56896), (5080, 56224), (7028, 40640), (7112, 40160), (8032, 35560), (8128, 35140), (8785, 32512), (8890, 32128), (8960, 31877), (10040, 28448), (10160, 28112), (14056, 20320), (14224, 20080), (16064, 17780), (16256, 17570)]