20400960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:368

約数の個数: 112

約数和(自身を含む): 65836800

約数和(自身を除く): 45435840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 79, 80, 96, 120, 158, 160, 192, 237, 240, 269, 316, 320, 395, 474, 480, 538, 632, 790, 807, 948, 960, 1076, 1185, 1264, 1345, 1580, 1614, 1896, 2152, 2370, 2528, 2690, 3160, 3228, 3792, 4035, 4304, 4740, 5056, 5380, 6320, 6456, 7584, 8070, 8608, 9480, 10760, 12640, 12912, 15168, 16140, 17216, 18960, 21251, 21520, 25280, 25824, 32280, 37920, 42502, 43040, 51648, 63753, 64560, 75840, 85004, 86080, 106255, 127506, 129120, 170008, 212510, 255012, 258240, 318765, 340016, 425020, 510024, 637530, 680032, 850040, 1020048, 1275060, 1360064, 1700080, 2040096, 2550120, 3400160, 4080192, 5100240, 6800320, 10200480, 20400960]

約数ペア:

[(1, 20400960), (2, 10200480), (3, 6800320), (4, 5100240), (5, 4080192), (6, 3400160), (8, 2550120), (10, 2040096), (12, 1700080), (15, 1360064), (16, 1275060), (20, 1020048), (24, 850040), (30, 680032), (32, 637530), (40, 510024), (48, 425020), (60, 340016), (64, 318765), (79, 258240), (80, 255012), (96, 212510), (120, 170008), (158, 129120), (160, 127506), (192, 106255), (237, 86080), (240, 85004), (269, 75840), (316, 64560), (320, 63753), (395, 51648), (474, 43040), (480, 42502), (538, 37920), (632, 32280), (790, 25824), (807, 25280), (948, 21520), (960, 21251), (1076, 18960), (1185, 17216), (1264, 16140), (1345, 15168), (1580, 12912), (1614, 12640), (1896, 10760), (2152, 9480), (2370, 8608), (2528, 8070), (2690, 7584), (3160, 6456), (3228, 6320), (3792, 5380), (4035, 5056), (4304, 4740)]