28793240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 82114560

約数和(自身を除く): 53321320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 85, 92, 115, 119, 136, 140, 161, 170, 184, 230, 238, 263, 280, 322, 340, 391, 460, 476, 526, 595, 644, 680, 782, 805, 920, 952, 1052, 1190, 1288, 1315, 1564, 1610, 1841, 1955, 2104, 2380, 2630, 2737, 3128, 3220, 3682, 3910, 4471, 4760, 5260, 5474, 6049, 6440, 7364, 7820, 8942, 9205, 10520, 10948, 12098, 13685, 14728, 15640, 17884, 18410, 21896, 22355, 24196, 27370, 30245, 31297, 35768, 36820, 42343, 44710, 48392, 54740, 60490, 62594, 73640, 84686, 89420, 102833, 109480, 120980, 125188, 156485, 169372, 178840, 205666, 211715, 241960, 250376, 312970, 338744, 411332, 423430, 514165, 625940, 719831, 822664, 846860, 1028330, 1251880, 1439662, 1693720, 2056660, 2879324, 3599155, 4113320, 5758648, 7198310, 14396620, 28793240]

約数ペア:

[(1, 28793240), (2, 14396620), (4, 7198310), (5, 5758648), (7, 4113320), (8, 3599155), (10, 2879324), (14, 2056660), (17, 1693720), (20, 1439662), (23, 1251880), (28, 1028330), (34, 846860), (35, 822664), (40, 719831), (46, 625940), (56, 514165), (68, 423430), (70, 411332), (85, 338744), (92, 312970), (115, 250376), (119, 241960), (136, 211715), (140, 205666), (161, 178840), (170, 169372), (184, 156485), (230, 125188), (238, 120980), (263, 109480), (280, 102833), (322, 89420), (340, 84686), (391, 73640), (460, 62594), (476, 60490), (526, 54740), (595, 48392), (644, 44710), (680, 42343), (782, 36820), (805, 35768), (920, 31297), (952, 30245), (1052, 27370), (1190, 24196), (1288, 22355), (1315, 21896), (1564, 18410), (1610, 17884), (1841, 15640), (1955, 14728), (2104, 13685), (2380, 12098), (2630, 10948), (2737, 10520), (3128, 9205), (3220, 8942), (3682, 7820), (3910, 7364), (4471, 6440), (4760, 6049), (5260, 5474)]