161832019904

素因数分解:

$2^6\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{256219}}^1$

素因数の和:256441

約数の個数: 56

約数和(自身を含む): 328002595200

約数和(自身を除く): 166170575296

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 139, 142, 278, 284, 556, 568, 1112, 1136, 2224, 2272, 4448, 4544, 8896, 9869, 19738, 39476, 78952, 157904, 256219, 315808, 512438, 631616, 1024876, 2049752, 4099504, 8199008, 16398016, 18191549, 35614441, 36383098, 71228882, 72766196, 142457764, 145532392, 284915528, 291064784, 569831056, 582129568, 1139662112, 1164259136, 2279324224, 2528625311, 5057250622, 10114501244, 20229002488, 40458004976, 80916009952, 161832019904]

約数ペア:

[(1, 161832019904), (2, 80916009952), (4, 40458004976), (8, 20229002488), (16, 10114501244), (32, 5057250622), (64, 2528625311), (71, 2279324224), (139, 1164259136), (142, 1139662112), (278, 582129568), (284, 569831056), (556, 291064784), (568, 284915528), (1112, 145532392), (1136, 142457764), (2224, 72766196), (2272, 71228882), (4448, 36383098), (4544, 35614441), (8896, 18191549), (9869, 16398016), (19738, 8199008), (39476, 4099504), (78952, 2049752), (157904, 1024876), (256219, 631616), (315808, 512438)]