161781808

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17167}}^1$

素因数の和:17225

約数の個数: 40

約数和(自身を含む): 340613120

約数和(自身を除く): 178831312

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 9424, 17167, 34334, 68668, 137336, 274672, 326173, 532177, 652346, 1064354, 1304692, 2128708, 2609384, 4257416, 5218768, 8514832, 10111363, 20222726, 40445452, 80890904, 161781808]

約数ペア:

[(1, 161781808), (2, 80890904), (4, 40445452), (8, 20222726), (16, 10111363), (19, 8514832), (31, 5218768), (38, 4257416), (62, 2609384), (76, 2128708), (124, 1304692), (152, 1064354), (248, 652346), (304, 532177), (496, 326173), (589, 274672), (1178, 137336), (2356, 68668), (4712, 34334), (9424, 17167)]