16686775

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 25712640

約数和(自身を除く): 9025865

約数列:

[1, 5, 7, 17, 25, 35, 71, 79, 85, 119, 175, 355, 395, 425, 497, 553, 595, 1207, 1343, 1775, 1975, 2485, 2765, 2975, 5609, 6035, 6715, 8449, 9401, 12425, 13825, 28045, 30175, 33575, 39263, 42245, 47005, 95353, 140225, 196315, 211225, 235025, 476765, 667471, 981575, 2383825, 3337355, 16686775]

約数ペア:

[(1, 16686775), (5, 3337355), (7, 2383825), (17, 981575), (25, 667471), (35, 476765), (71, 235025), (79, 211225), (85, 196315), (119, 140225), (175, 95353), (355, 47005), (395, 42245), (425, 39263), (497, 33575), (553, 30175), (595, 28045), (1207, 13825), (1343, 12425), (1775, 9401), (1975, 8449), (2485, 6715), (2765, 6035), (2975, 5609)]