19754800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:191

約数の個数: 120

約数和(自身を含む): 53277840

約数和(自身を除く): 33523040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 29, 40, 50, 52, 58, 65, 80, 100, 104, 116, 130, 131, 145, 200, 208, 232, 260, 262, 290, 325, 377, 400, 464, 520, 524, 580, 650, 655, 725, 754, 1040, 1048, 1160, 1300, 1310, 1450, 1508, 1703, 1885, 2096, 2320, 2600, 2620, 2900, 3016, 3275, 3406, 3770, 3799, 5200, 5240, 5800, 6032, 6550, 6812, 7540, 7598, 8515, 9425, 10480, 11600, 13100, 13624, 15080, 15196, 17030, 18850, 18995, 26200, 27248, 30160, 30392, 34060, 37700, 37990, 42575, 49387, 52400, 60784, 68120, 75400, 75980, 85150, 94975, 98774, 136240, 150800, 151960, 170300, 189950, 197548, 246935, 303920, 340600, 379900, 395096, 493870, 681200, 759800, 790192, 987740, 1234675, 1519600, 1975480, 2469350, 3950960, 4938700, 9877400, 19754800]

約数ペア:

[(1, 19754800), (2, 9877400), (4, 4938700), (5, 3950960), (8, 2469350), (10, 1975480), (13, 1519600), (16, 1234675), (20, 987740), (25, 790192), (26, 759800), (29, 681200), (40, 493870), (50, 395096), (52, 379900), (58, 340600), (65, 303920), (80, 246935), (100, 197548), (104, 189950), (116, 170300), (130, 151960), (131, 150800), (145, 136240), (200, 98774), (208, 94975), (232, 85150), (260, 75980), (262, 75400), (290, 68120), (325, 60784), (377, 52400), (400, 49387), (464, 42575), (520, 37990), (524, 37700), (580, 34060), (650, 30392), (655, 30160), (725, 27248), (754, 26200), (1040, 18995), (1048, 18850), (1160, 17030), (1300, 15196), (1310, 15080), (1450, 13624), (1508, 13100), (1703, 11600), (1885, 10480), (2096, 9425), (2320, 8515), (2600, 7598), (2620, 7540), (2900, 6812), (3016, 6550), (3275, 6032), (3406, 5800), (3770, 5240), (3799, 5200)]