159640000

素因数分解:

$2^6\times 5^4\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:352

約数の個数: 140

約数和(自身を含む): 427694344

約数和(自身を除く): 268054344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 307, 320, 325, 400, 416, 500, 520, 614, 625, 650, 800, 832, 1000, 1040, 1228, 1250, 1300, 1535, 1600, 1625, 2000, 2080, 2456, 2500, 2600, 3070, 3250, 3991, 4000, 4160, 4912, 5000, 5200, 6140, 6500, 7675, 7982, 8000, 8125, 9824, 10000, 10400, 12280, 13000, 15350, 15964, 16250, 19648, 19955, 20000, 20800, 24560, 26000, 30700, 31928, 32500, 38375, 39910, 40000, 49120, 52000, 61400, 63856, 65000, 76750, 79820, 98240, 99775, 104000, 122800, 127712, 130000, 153500, 159640, 191875, 199550, 245600, 255424, 260000, 307000, 319280, 383750, 399100, 491200, 498875, 520000, 614000, 638560, 767500, 798200, 997750, 1228000, 1277120, 1535000, 1596400, 1995500, 2456000, 2494375, 3070000, 3192800, 3991000, 4988750, 6140000, 6385600, 7982000, 9977500, 12280000, 15964000, 19955000, 31928000, 39910000, 79820000, 159640000]

約数ペア:

[(1, 159640000), (2, 79820000), (4, 39910000), (5, 31928000), (8, 19955000), (10, 15964000), (13, 12280000), (16, 9977500), (20, 7982000), (25, 6385600), (26, 6140000), (32, 4988750), (40, 3991000), (50, 3192800), (52, 3070000), (64, 2494375), (65, 2456000), (80, 1995500), (100, 1596400), (104, 1535000), (125, 1277120), (130, 1228000), (160, 997750), (200, 798200), (208, 767500), (250, 638560), (260, 614000), (307, 520000), (320, 498875), (325, 491200), (400, 399100), (416, 383750), (500, 319280), (520, 307000), (614, 260000), (625, 255424), (650, 245600), (800, 199550), (832, 191875), (1000, 159640), (1040, 153500), (1228, 130000), (1250, 127712), (1300, 122800), (1535, 104000), (1600, 99775), (1625, 98240), (2000, 79820), (2080, 76750), (2456, 65000), (2500, 63856), (2600, 61400), (3070, 52000), (3250, 49120), (3991, 40000), (4000, 39910), (4160, 38375), (4912, 32500), (5000, 31928), (5200, 30700), (6140, 26000), (6500, 24560), (7675, 20800), (7982, 20000), (8000, 19955), (8125, 19648), (9824, 16250), (10000, 15964), (10400, 15350), (12280, 13000)]