280309505

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 406373760

約数和(自身を除く): 126064255

約数列:

[1, 5, 7, 29, 35, 89, 107, 145, 203, 445, 535, 623, 749, 841, 1015, 2581, 3103, 3115, 3745, 4205, 5887, 9523, 12905, 15515, 18067, 21721, 29435, 47615, 66661, 74849, 89987, 90335, 108605, 276167, 333305, 374245, 449935, 523943, 629909, 1380835, 1933169, 2619715, 3149545, 8008843, 9665845, 40044215, 56061901, 280309505]

約数ペア:

[(1, 280309505), (5, 56061901), (7, 40044215), (29, 9665845), (35, 8008843), (89, 3149545), (107, 2619715), (145, 1933169), (203, 1380835), (445, 629909), (535, 523943), (623, 449935), (749, 374245), (841, 333305), (1015, 276167), (2581, 108605), (3103, 90335), (3115, 89987), (3745, 74849), (4205, 66661), (5887, 47615), (9523, 29435), (12905, 21721), (15515, 18067)]