18807984

素因数分解:

$2^4\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:244

約数の個数: 160

約数和(自身を含む): 61871040

約数和(自身を除く): 43063056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 17, 18, 24, 26, 27, 34, 36, 39, 48, 51, 52, 54, 68, 72, 78, 102, 104, 108, 117, 136, 144, 153, 156, 197, 204, 208, 216, 221, 234, 272, 306, 312, 351, 394, 408, 432, 442, 459, 468, 591, 612, 624, 663, 702, 788, 816, 884, 918, 936, 1182, 1224, 1326, 1404, 1576, 1768, 1773, 1836, 1872, 1989, 2364, 2448, 2561, 2652, 2808, 3152, 3349, 3536, 3546, 3672, 3978, 4728, 5122, 5304, 5319, 5616, 5967, 6698, 7092, 7344, 7683, 7956, 9456, 10047, 10244, 10608, 10638, 11934, 13396, 14184, 15366, 15912, 20094, 20488, 21276, 23049, 23868, 26792, 28368, 30141, 30732, 31824, 40188, 40976, 42552, 43537, 46098, 47736, 53584, 60282, 61464, 69147, 80376, 85104, 87074, 90423, 92196, 95472, 120564, 122928, 130611, 138294, 160752, 174148, 180846, 184392, 241128, 261222, 276588, 348296, 361692, 368784, 391833, 482256, 522444, 553176, 696592, 723384, 783666, 1044888, 1106352, 1175499, 1446768, 1567332, 2089776, 2350998, 3134664, 4701996, 6269328, 9403992, 18807984]

約数ペア:

[(1, 18807984), (2, 9403992), (3, 6269328), (4, 4701996), (6, 3134664), (8, 2350998), (9, 2089776), (12, 1567332), (13, 1446768), (16, 1175499), (17, 1106352), (18, 1044888), (24, 783666), (26, 723384), (27, 696592), (34, 553176), (36, 522444), (39, 482256), (48, 391833), (51, 368784), (52, 361692), (54, 348296), (68, 276588), (72, 261222), (78, 241128), (102, 184392), (104, 180846), (108, 174148), (117, 160752), (136, 138294), (144, 130611), (153, 122928), (156, 120564), (197, 95472), (204, 92196), (208, 90423), (216, 87074), (221, 85104), (234, 80376), (272, 69147), (306, 61464), (312, 60282), (351, 53584), (394, 47736), (408, 46098), (432, 43537), (442, 42552), (459, 40976), (468, 40188), (591, 31824), (612, 30732), (624, 30141), (663, 28368), (702, 26792), (788, 23868), (816, 23049), (884, 21276), (918, 20488), (936, 20094), (1182, 15912), (1224, 15366), (1326, 14184), (1404, 13396), (1576, 11934), (1768, 10638), (1773, 10608), (1836, 10244), (1872, 10047), (1989, 9456), (2364, 7956), (2448, 7683), (2561, 7344), (2652, 7092), (2808, 6698), (3152, 5967), (3349, 5616), (3536, 5319), (3546, 5304), (3672, 5122), (3978, 4728)]