217729132

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 445616640

約数和(自身を除く): 227887508

約数列:

[1, 2, 4, 17, 19, 23, 34, 38, 46, 68, 76, 92, 289, 323, 391, 431, 437, 578, 646, 782, 862, 874, 1156, 1292, 1564, 1724, 1748, 5491, 6647, 7327, 7429, 8189, 9913, 10982, 13294, 14654, 14858, 16378, 19826, 21964, 26588, 29308, 29716, 32756, 39652, 124559, 126293, 139213, 168521, 188347, 249118, 252586, 278426, 337042, 376694, 498236, 505172, 556852, 674084, 753388, 2366621, 2864857, 3201899, 4733242, 5729714, 6403798, 9466484, 11459428, 12807596, 54432283, 108864566, 217729132]

約数ペア:

[(1, 217729132), (2, 108864566), (4, 54432283), (17, 12807596), (19, 11459428), (23, 9466484), (34, 6403798), (38, 5729714), (46, 4733242), (68, 3201899), (76, 2864857), (92, 2366621), (289, 753388), (323, 674084), (391, 556852), (431, 505172), (437, 498236), (578, 376694), (646, 337042), (782, 278426), (862, 252586), (874, 249118), (1156, 188347), (1292, 168521), (1564, 139213), (1724, 126293), (1748, 124559), (5491, 39652), (6647, 32756), (7327, 29716), (7429, 29308), (8189, 26588), (9913, 21964), (10982, 19826), (13294, 16378), (14654, 14858)]