8201440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3943}}^1$

素因数の和:3971

約数の個数: 48

約数和(自身を含む): 20871648

約数和(自身を除く): 12670208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 3943, 7886, 15772, 19715, 31544, 39430, 51259, 63088, 78860, 102518, 126176, 157720, 205036, 256295, 315440, 410072, 512590, 630880, 820144, 1025180, 1640288, 2050360, 4100720, 8201440]

約数ペア:

[(1, 8201440), (2, 4100720), (4, 2050360), (5, 1640288), (8, 1025180), (10, 820144), (13, 630880), (16, 512590), (20, 410072), (26, 315440), (32, 256295), (40, 205036), (52, 157720), (65, 126176), (80, 102518), (104, 78860), (130, 63088), (160, 51259), (208, 39430), (260, 31544), (416, 19715), (520, 15772), (1040, 7886), (2080, 3943)]