19860480

素因数分解:

$2^{10}\times 3^2\times 5^1\times {\mathrm{431}}^1$

素因数の和:462

約数の個数: 132

約数和(自身を含む): 68975712

約数和(自身を除く): 49115232

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, 431, 480, 512, 576, 640, 720, 768, 862, 960, 1024, 1152, 1280, 1293, 1440, 1536, 1724, 1920, 2155, 2304, 2560, 2586, 2880, 3072, 3448, 3840, 3879, 4310, 4608, 5120, 5172, 5760, 6465, 6896, 7680, 7758, 8620, 9216, 10344, 11520, 12930, 13792, 15360, 15516, 17240, 19395, 20688, 23040, 25860, 27584, 31032, 34480, 38790, 41376, 46080, 51720, 55168, 62064, 68960, 77580, 82752, 103440, 110336, 124128, 137920, 155160, 165504, 206880, 220672, 248256, 275840, 310320, 331008, 413760, 441344, 496512, 551680, 620640, 662016, 827520, 993024, 1103360, 1241280, 1324032, 1655040, 1986048, 2206720, 2482560, 3310080, 3972096, 4965120, 6620160, 9930240, 19860480]

約数ペア:

[(1, 19860480), (2, 9930240), (3, 6620160), (4, 4965120), (5, 3972096), (6, 3310080), (8, 2482560), (9, 2206720), (10, 1986048), (12, 1655040), (15, 1324032), (16, 1241280), (18, 1103360), (20, 993024), (24, 827520), (30, 662016), (32, 620640), (36, 551680), (40, 496512), (45, 441344), (48, 413760), (60, 331008), (64, 310320), (72, 275840), (80, 248256), (90, 220672), (96, 206880), (120, 165504), (128, 155160), (144, 137920), (160, 124128), (180, 110336), (192, 103440), (240, 82752), (256, 77580), (288, 68960), (320, 62064), (360, 55168), (384, 51720), (431, 46080), (480, 41376), (512, 38790), (576, 34480), (640, 31032), (720, 27584), (768, 25860), (862, 23040), (960, 20688), (1024, 19395), (1152, 17240), (1280, 15516), (1293, 15360), (1440, 13792), (1536, 12930), (1724, 11520), (1920, 10344), (2155, 9216), (2304, 8620), (2560, 7758), (2586, 7680), (2880, 6896), (3072, 6465), (3448, 5760), (3840, 5172), (3879, 5120), (4310, 4608)]