81696580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30713}}^1$

素因数の和:30748

約数の個数: 48

約数和(自身を含む): 206398080

約数和(自身を除く): 124701500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 30713, 61426, 122852, 153565, 214991, 307130, 429982, 583547, 614260, 859964, 1074955, 1167094, 2149910, 2334188, 2917735, 4084829, 4299820, 5835470, 8169658, 11670940, 16339316, 20424145, 40848290, 81696580]

約数ペア:

[(1, 81696580), (2, 40848290), (4, 20424145), (5, 16339316), (7, 11670940), (10, 8169658), (14, 5835470), (19, 4299820), (20, 4084829), (28, 2917735), (35, 2334188), (38, 2149910), (70, 1167094), (76, 1074955), (95, 859964), (133, 614260), (140, 583547), (190, 429982), (266, 307130), (380, 214991), (532, 153565), (665, 122852), (1330, 61426), (2660, 30713)]