161781452

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4787}}^1$

素因数の和:4886

約数の個数: 48

約数和(自身を含む): 347493888

約数和(自身を除く): 185712436

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 71, 119, 142, 238, 284, 476, 497, 994, 1207, 1988, 2414, 4787, 4828, 8449, 9574, 16898, 19148, 33509, 33796, 67018, 81379, 134036, 162758, 325516, 339877, 569653, 679754, 1139306, 1359508, 2278612, 2379139, 4758278, 5777909, 9516556, 11555818, 23111636, 40445363, 80890726, 161781452]

約数ペア:

[(1, 161781452), (2, 80890726), (4, 40445363), (7, 23111636), (14, 11555818), (17, 9516556), (28, 5777909), (34, 4758278), (68, 2379139), (71, 2278612), (119, 1359508), (142, 1139306), (238, 679754), (284, 569653), (476, 339877), (497, 325516), (994, 162758), (1207, 134036), (1988, 81379), (2414, 67018), (4787, 33796), (4828, 33509), (8449, 19148), (9574, 16898)]