81148160

素因数分解:

$2^8\times 5^1\times {\mathrm{63397}}^1$

素因数の和:63418

約数の個数: 36

約数和(自身を含む): 194378268

約数和(自身を除く): 113230108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 63397, 126794, 253588, 316985, 507176, 633970, 1014352, 1267940, 2028704, 2535880, 4057408, 5071760, 8114816, 10143520, 16229632, 20287040, 40574080, 81148160]

約数ペア:

[(1, 81148160), (2, 40574080), (4, 20287040), (5, 16229632), (8, 10143520), (10, 8114816), (16, 5071760), (20, 4057408), (32, 2535880), (40, 2028704), (64, 1267940), (80, 1014352), (128, 633970), (160, 507176), (256, 316985), (320, 253588), (640, 126794), (1280, 63397)]