788912800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2447}}^1$

素因数の和:2511

約数の個数: 144

約数和(自身を含む): 2141862912

約数和(自身を除く): 1352950112

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 260, 310, 325, 400, 403, 416, 496, 520, 620, 650, 775, 800, 806, 992, 1040, 1240, 1300, 1550, 1612, 2015, 2080, 2447, 2480, 2600, 3100, 3224, 4030, 4894, 4960, 5200, 6200, 6448, 8060, 9788, 10075, 10400, 12235, 12400, 12896, 16120, 19576, 20150, 24470, 24800, 31811, 32240, 39152, 40300, 48940, 61175, 63622, 64480, 75857, 78304, 80600, 97880, 122350, 127244, 151714, 159055, 161200, 195760, 244700, 254488, 303428, 318110, 322400, 379285, 391520, 489400, 508976, 606856, 636220, 758570, 795275, 978800, 986141, 1017952, 1213712, 1272440, 1517140, 1590550, 1896425, 1957600, 1972282, 2427424, 2544880, 3034280, 3181100, 3792850, 3944564, 4930705, 5089760, 6068560, 6362200, 7585700, 7889128, 9861410, 12137120, 12724400, 15171400, 15778256, 19722820, 24653525, 25448800, 30342800, 31556512, 39445640, 49307050, 60685600, 78891280, 98614100, 157782560, 197228200, 394456400, 788912800]

約数ペア:

[(1, 788912800), (2, 394456400), (4, 197228200), (5, 157782560), (8, 98614100), (10, 78891280), (13, 60685600), (16, 49307050), (20, 39445640), (25, 31556512), (26, 30342800), (31, 25448800), (32, 24653525), (40, 19722820), (50, 15778256), (52, 15171400), (62, 12724400), (65, 12137120), (80, 9861410), (100, 7889128), (104, 7585700), (124, 6362200), (130, 6068560), (155, 5089760), (160, 4930705), (200, 3944564), (208, 3792850), (248, 3181100), (260, 3034280), (310, 2544880), (325, 2427424), (400, 1972282), (403, 1957600), (416, 1896425), (496, 1590550), (520, 1517140), (620, 1272440), (650, 1213712), (775, 1017952), (800, 986141), (806, 978800), (992, 795275), (1040, 758570), (1240, 636220), (1300, 606856), (1550, 508976), (1612, 489400), (2015, 391520), (2080, 379285), (2447, 322400), (2480, 318110), (2600, 303428), (3100, 254488), (3224, 244700), (4030, 195760), (4894, 161200), (4960, 159055), (5200, 151714), (6200, 127244), (6448, 122350), (8060, 97880), (9788, 80600), (10075, 78304), (10400, 75857), (12235, 64480), (12400, 63622), (12896, 61175), (16120, 48940), (19576, 40300), (20150, 39152), (24470, 32240), (24800, 31811)]