39971720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24373}}^1$

素因数の和:24425

約数の個数: 32

約数和(自身を含む): 92133720

約数和(自身を除く): 52162000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 24373, 48746, 97492, 121865, 194984, 243730, 487460, 974920, 999293, 1998586, 3997172, 4996465, 7994344, 9992930, 19985860, 39971720]

約数ペア:

[(1, 39971720), (2, 19985860), (4, 9992930), (5, 7994344), (8, 4996465), (10, 3997172), (20, 1998586), (40, 999293), (41, 974920), (82, 487460), (164, 243730), (205, 194984), (328, 121865), (410, 97492), (820, 48746), (1640, 24373)]