81244160

素因数分解:

$2^{12}\times 5^1\times {\mathrm{3967}}^1$

素因数の和:3996

約数の個数: 52

約数和(自身を含む): 195011328

約数和(自身を除く): 113767168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 3967, 4096, 5120, 7934, 10240, 15868, 19835, 20480, 31736, 39670, 63472, 79340, 126944, 158680, 253888, 317360, 507776, 634720, 1015552, 1269440, 2031104, 2538880, 4062208, 5077760, 8124416, 10155520, 16248832, 20311040, 40622080, 81244160]

約数ペア:

[(1, 81244160), (2, 40622080), (4, 20311040), (5, 16248832), (8, 10155520), (10, 8124416), (16, 5077760), (20, 4062208), (32, 2538880), (40, 2031104), (64, 1269440), (80, 1015552), (128, 634720), (160, 507776), (256, 317360), (320, 253888), (512, 158680), (640, 126944), (1024, 79340), (1280, 63472), (2048, 39670), (2560, 31736), (3967, 20480), (4096, 19835), (5120, 15868), (7934, 10240)]