279331325

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{617}}^1$

素因数の和:846

約数の個数: 48

約数和(自身を含む): 429139200

約数和(自身を除く): 149807875

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 199, 325, 455, 617, 995, 1393, 2275, 2587, 3085, 4319, 4975, 6965, 8021, 12935, 15425, 18109, 21595, 34825, 40105, 56147, 64675, 90545, 107975, 122783, 200525, 280735, 452725, 613915, 859481, 1403675, 1596179, 3069575, 4297405, 7980895, 11173253, 21487025, 39904475, 55866265, 279331325]

約数ペア:

[(1, 279331325), (5, 55866265), (7, 39904475), (13, 21487025), (25, 11173253), (35, 7980895), (65, 4297405), (91, 3069575), (175, 1596179), (199, 1403675), (325, 859481), (455, 613915), (617, 452725), (995, 280735), (1393, 200525), (2275, 122783), (2587, 107975), (3085, 90545), (4319, 64675), (4975, 56147), (6965, 40105), (8021, 34825), (12935, 21595), (15425, 18109)]