85165040

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15889}}^1$

素因数の和:15969

約数の個数: 40

約数和(自身を含む): 200976720

約数和(自身を除く): 115811680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 15889, 31778, 63556, 79445, 127112, 158890, 254224, 317780, 635560, 1064563, 1271120, 2129126, 4258252, 5322815, 8516504, 10645630, 17033008, 21291260, 42582520, 85165040]

約数ペア:

[(1, 85165040), (2, 42582520), (4, 21291260), (5, 17033008), (8, 10645630), (10, 8516504), (16, 5322815), (20, 4258252), (40, 2129126), (67, 1271120), (80, 1064563), (134, 635560), (268, 317780), (335, 254224), (536, 158890), (670, 127112), (1072, 79445), (1340, 63556), (2680, 31778), (5360, 15889)]