19745280

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{857}}^1$

素因数の和:886

約数の個数: 120

約数和(自身を含む): 68463252

約数和(自身を除く): 48717972

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 857, 960, 1152, 1280, 1440, 1536, 1714, 1920, 2304, 2560, 2571, 2880, 3428, 3840, 4285, 4608, 5142, 5760, 6856, 7680, 7713, 8570, 10284, 11520, 12855, 13712, 15426, 17140, 20568, 23040, 25710, 27424, 30852, 34280, 38565, 41136, 51420, 54848, 61704, 68560, 77130, 82272, 102840, 109696, 123408, 137120, 154260, 164544, 205680, 219392, 246816, 274240, 308520, 329088, 411360, 438784, 493632, 548480, 617040, 658176, 822720, 987264, 1096960, 1234080, 1316352, 1645440, 1974528, 2193920, 2468160, 3290880, 3949056, 4936320, 6581760, 9872640, 19745280]

約数ペア:

[(1, 19745280), (2, 9872640), (3, 6581760), (4, 4936320), (5, 3949056), (6, 3290880), (8, 2468160), (9, 2193920), (10, 1974528), (12, 1645440), (15, 1316352), (16, 1234080), (18, 1096960), (20, 987264), (24, 822720), (30, 658176), (32, 617040), (36, 548480), (40, 493632), (45, 438784), (48, 411360), (60, 329088), (64, 308520), (72, 274240), (80, 246816), (90, 219392), (96, 205680), (120, 164544), (128, 154260), (144, 137120), (160, 123408), (180, 109696), (192, 102840), (240, 82272), (256, 77130), (288, 68560), (320, 61704), (360, 54848), (384, 51420), (480, 41136), (512, 38565), (576, 34280), (640, 30852), (720, 27424), (768, 25710), (857, 23040), (960, 20568), (1152, 17140), (1280, 15426), (1440, 13712), (1536, 12855), (1714, 11520), (1920, 10284), (2304, 8570), (2560, 7713), (2571, 7680), (2880, 6856), (3428, 5760), (3840, 5142), (4285, 4608)]