161551728

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:647

約数の個数: 120

約数和(自身を含む): 490402640

約数和(自身を除く): 328850912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 211, 234, 312, 409, 422, 468, 624, 633, 818, 844, 936, 1227, 1266, 1636, 1688, 1872, 1899, 2454, 2532, 2743, 3272, 3376, 3681, 3798, 4908, 5064, 5317, 5486, 6544, 7362, 7596, 8229, 9816, 10128, 10634, 10972, 14724, 15192, 15951, 16458, 19632, 21268, 21944, 24687, 29448, 30384, 31902, 32916, 42536, 43888, 47853, 49374, 58896, 63804, 65832, 85072, 86299, 95706, 98748, 127608, 131664, 172598, 191412, 197496, 255216, 258897, 345196, 382824, 394992, 517794, 690392, 765648, 776691, 1035588, 1121887, 1380784, 1553382, 2071176, 2243774, 3106764, 3365661, 4142352, 4487548, 6213528, 6731322, 8975096, 10096983, 12427056, 13462644, 17950192, 20193966, 26925288, 40387932, 53850576, 80775864, 161551728]

約数ペア:

[(1, 161551728), (2, 80775864), (3, 53850576), (4, 40387932), (6, 26925288), (8, 20193966), (9, 17950192), (12, 13462644), (13, 12427056), (16, 10096983), (18, 8975096), (24, 6731322), (26, 6213528), (36, 4487548), (39, 4142352), (48, 3365661), (52, 3106764), (72, 2243774), (78, 2071176), (104, 1553382), (117, 1380784), (144, 1121887), (156, 1035588), (208, 776691), (211, 765648), (234, 690392), (312, 517794), (409, 394992), (422, 382824), (468, 345196), (624, 258897), (633, 255216), (818, 197496), (844, 191412), (936, 172598), (1227, 131664), (1266, 127608), (1636, 98748), (1688, 95706), (1872, 86299), (1899, 85072), (2454, 65832), (2532, 63804), (2743, 58896), (3272, 49374), (3376, 47853), (3681, 43888), (3798, 42536), (4908, 32916), (5064, 31902), (5317, 30384), (5486, 29448), (6544, 24687), (7362, 21944), (7596, 21268), (8229, 19632), (9816, 16458), (10128, 15951), (10634, 15192), (10972, 14724)]