178493840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{379}}^1$

素因数の和:457

約数の個数: 120

約数和(自身を含む): 492498240

約数和(自身を除く): 314004400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 379, 406, 464, 560, 580, 758, 812, 841, 1015, 1160, 1516, 1624, 1682, 1895, 2030, 2320, 2653, 3032, 3248, 3364, 3790, 4060, 4205, 5306, 5887, 6064, 6728, 7580, 8120, 8410, 10612, 10991, 11774, 13265, 13456, 15160, 16240, 16820, 21224, 21982, 23548, 26530, 29435, 30320, 33640, 42448, 43964, 47096, 53060, 54955, 58870, 67280, 76937, 87928, 94192, 106120, 109910, 117740, 153874, 175856, 212240, 219820, 235480, 307748, 318739, 384685, 439640, 470960, 615496, 637478, 769370, 879280, 1230992, 1274956, 1538740, 1593695, 2231173, 2549912, 3077480, 3187390, 4462346, 5099824, 6154960, 6374780, 8924692, 11155865, 12749560, 17849384, 22311730, 25499120, 35698768, 44623460, 89246920, 178493840]

約数ペア:

[(1, 178493840), (2, 89246920), (4, 44623460), (5, 35698768), (7, 25499120), (8, 22311730), (10, 17849384), (14, 12749560), (16, 11155865), (20, 8924692), (28, 6374780), (29, 6154960), (35, 5099824), (40, 4462346), (56, 3187390), (58, 3077480), (70, 2549912), (80, 2231173), (112, 1593695), (116, 1538740), (140, 1274956), (145, 1230992), (203, 879280), (232, 769370), (280, 637478), (290, 615496), (379, 470960), (406, 439640), (464, 384685), (560, 318739), (580, 307748), (758, 235480), (812, 219820), (841, 212240), (1015, 175856), (1160, 153874), (1516, 117740), (1624, 109910), (1682, 106120), (1895, 94192), (2030, 87928), (2320, 76937), (2653, 67280), (3032, 58870), (3248, 54955), (3364, 53060), (3790, 47096), (4060, 43964), (4205, 42448), (5306, 33640), (5887, 30320), (6064, 29435), (6728, 26530), (7580, 23548), (8120, 21982), (8410, 21224), (10612, 16820), (10991, 16240), (11774, 15160), (13265, 13456)]