20277120

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 66096000

約数和(自身を除く): 45818880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 59, 60, 64, 80, 96, 118, 120, 128, 160, 177, 179, 192, 236, 240, 295, 320, 354, 358, 384, 472, 480, 537, 590, 640, 708, 716, 885, 895, 944, 960, 1074, 1180, 1416, 1432, 1770, 1790, 1888, 1920, 2148, 2360, 2685, 2832, 2864, 3540, 3580, 3776, 4296, 4720, 5370, 5664, 5728, 7080, 7160, 7552, 8592, 9440, 10561, 10740, 11328, 11456, 14160, 14320, 17184, 18880, 21122, 21480, 22656, 22912, 28320, 28640, 31683, 34368, 37760, 42244, 42960, 52805, 56640, 57280, 63366, 68736, 84488, 85920, 105610, 113280, 114560, 126732, 158415, 168976, 171840, 211220, 253464, 316830, 337952, 343680, 422440, 506928, 633660, 675904, 844880, 1013856, 1267320, 1351808, 1689760, 2027712, 2534640, 3379520, 4055424, 5069280, 6759040, 10138560, 20277120]

約数ペア:

[(1, 20277120), (2, 10138560), (3, 6759040), (4, 5069280), (5, 4055424), (6, 3379520), (8, 2534640), (10, 2027712), (12, 1689760), (15, 1351808), (16, 1267320), (20, 1013856), (24, 844880), (30, 675904), (32, 633660), (40, 506928), (48, 422440), (59, 343680), (60, 337952), (64, 316830), (80, 253464), (96, 211220), (118, 171840), (120, 168976), (128, 158415), (160, 126732), (177, 114560), (179, 113280), (192, 105610), (236, 85920), (240, 84488), (295, 68736), (320, 63366), (354, 57280), (358, 56640), (384, 52805), (472, 42960), (480, 42244), (537, 37760), (590, 34368), (640, 31683), (708, 28640), (716, 28320), (885, 22912), (895, 22656), (944, 21480), (960, 21122), (1074, 18880), (1180, 17184), (1416, 14320), (1432, 14160), (1770, 11456), (1790, 11328), (1888, 10740), (1920, 10561), (2148, 9440), (2360, 8592), (2685, 7552), (2832, 7160), (2864, 7080), (3540, 5728), (3580, 5664), (3776, 5370), (4296, 4720)]