28697790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:262

約数の個数: 128

約数和(自身を含む): 82944000

約数和(自身を除く): 54246210

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 19, 22, 23, 30, 33, 38, 46, 55, 57, 66, 69, 95, 110, 114, 115, 138, 165, 190, 199, 209, 230, 253, 285, 330, 345, 398, 418, 437, 506, 570, 597, 627, 690, 759, 874, 995, 1045, 1194, 1254, 1265, 1311, 1518, 1990, 2090, 2185, 2189, 2530, 2622, 2985, 3135, 3781, 3795, 4370, 4378, 4577, 4807, 5970, 6270, 6555, 6567, 7562, 7590, 9154, 9614, 10945, 11343, 13110, 13134, 13731, 14421, 18905, 21890, 22686, 22885, 24035, 27462, 28842, 32835, 37810, 41591, 45770, 48070, 50347, 56715, 65670, 68655, 72105, 83182, 86963, 100694, 113430, 124773, 137310, 144210, 151041, 173926, 207955, 249546, 251735, 260889, 302082, 415910, 434815, 503470, 521778, 623865, 755205, 869630, 956593, 1247730, 1304445, 1510410, 1913186, 2608890, 2869779, 4782965, 5739558, 9565930, 14348895, 28697790]

約数ペア:

[(1, 28697790), (2, 14348895), (3, 9565930), (5, 5739558), (6, 4782965), (10, 2869779), (11, 2608890), (15, 1913186), (19, 1510410), (22, 1304445), (23, 1247730), (30, 956593), (33, 869630), (38, 755205), (46, 623865), (55, 521778), (57, 503470), (66, 434815), (69, 415910), (95, 302082), (110, 260889), (114, 251735), (115, 249546), (138, 207955), (165, 173926), (190, 151041), (199, 144210), (209, 137310), (230, 124773), (253, 113430), (285, 100694), (330, 86963), (345, 83182), (398, 72105), (418, 68655), (437, 65670), (506, 56715), (570, 50347), (597, 48070), (627, 45770), (690, 41591), (759, 37810), (874, 32835), (995, 28842), (1045, 27462), (1194, 24035), (1254, 22885), (1265, 22686), (1311, 21890), (1518, 18905), (1990, 14421), (2090, 13731), (2185, 13134), (2189, 13110), (2530, 11343), (2622, 10945), (2985, 9614), (3135, 9154), (3781, 7590), (3795, 7562), (4370, 6567), (4378, 6555), (4577, 6270), (4807, 5970)]