28211976

素因数分解:

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

素因数の和:245

約数の個数: 160

約数和(自身を含む): 90561240

約数和(自身を除く): 62349264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 17, 18, 24, 26, 27, 34, 36, 39, 51, 52, 54, 68, 72, 78, 81, 102, 104, 108, 117, 136, 153, 156, 162, 197, 204, 216, 221, 234, 306, 312, 324, 351, 394, 408, 442, 459, 468, 591, 612, 648, 663, 702, 788, 884, 918, 936, 1053, 1182, 1224, 1326, 1377, 1404, 1576, 1768, 1773, 1836, 1989, 2106, 2364, 2561, 2652, 2754, 2808, 3349, 3546, 3672, 3978, 4212, 4728, 5122, 5304, 5319, 5508, 5967, 6698, 7092, 7683, 7956, 8424, 10047, 10244, 10638, 11016, 11934, 13396, 14184, 15366, 15912, 15957, 17901, 20094, 20488, 21276, 23049, 23868, 26792, 30141, 30732, 31914, 35802, 40188, 42552, 43537, 46098, 47736, 60282, 61464, 63828, 69147, 71604, 80376, 87074, 90423, 92196, 120564, 127656, 130611, 138294, 143208, 174148, 180846, 184392, 207441, 241128, 261222, 271269, 276588, 348296, 361692, 391833, 414882, 522444, 542538, 553176, 723384, 783666, 829764, 1044888, 1085076, 1175499, 1567332, 1659528, 2170152, 2350998, 3134664, 3526497, 4701996, 7052994, 9403992, 14105988, 28211976]

約数ペア:

[(1, 28211976), (2, 14105988), (3, 9403992), (4, 7052994), (6, 4701996), (8, 3526497), (9, 3134664), (12, 2350998), (13, 2170152), (17, 1659528), (18, 1567332), (24, 1175499), (26, 1085076), (27, 1044888), (34, 829764), (36, 783666), (39, 723384), (51, 553176), (52, 542538), (54, 522444), (68, 414882), (72, 391833), (78, 361692), (81, 348296), (102, 276588), (104, 271269), (108, 261222), (117, 241128), (136, 207441), (153, 184392), (156, 180846), (162, 174148), (197, 143208), (204, 138294), (216, 130611), (221, 127656), (234, 120564), (306, 92196), (312, 90423), (324, 87074), (351, 80376), (394, 71604), (408, 69147), (442, 63828), (459, 61464), (468, 60282), (591, 47736), (612, 46098), (648, 43537), (663, 42552), (702, 40188), (788, 35802), (884, 31914), (918, 30732), (936, 30141), (1053, 26792), (1182, 23868), (1224, 23049), (1326, 21276), (1377, 20488), (1404, 20094), (1576, 17901), (1768, 15957), (1773, 15912), (1836, 15366), (1989, 14184), (2106, 13396), (2364, 11934), (2561, 11016), (2652, 10638), (2754, 10244), (2808, 10047), (3349, 8424), (3546, 7956), (3672, 7683), (3978, 7092), (4212, 6698), (4728, 5967), (5122, 5508), (5304, 5319)]