71820920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{105619}}^1$

素因数の和:105647

約数の個数: 32

約数和(自身を含む): 171104400

約数和(自身を除く): 99283480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 105619, 211238, 422476, 528095, 844952, 1056190, 1795523, 2112380, 3591046, 4224760, 7182092, 8977615, 14364184, 17955230, 35910460, 71820920]

約数ペア:

[(1, 71820920), (2, 35910460), (4, 17955230), (5, 14364184), (8, 8977615), (10, 7182092), (17, 4224760), (20, 3591046), (34, 2112380), (40, 1795523), (68, 1056190), (85, 844952), (136, 528095), (170, 422476), (340, 211238), (680, 105619)]