20479160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39383}}^1$

素因数の和:39407

約数の個数: 32

約数和(自身を含む): 49623840

約数和(自身を除く): 29144680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39383, 78766, 157532, 196915, 315064, 393830, 511979, 787660, 1023958, 1575320, 2047916, 2559895, 4095832, 5119790, 10239580, 20479160]

約数ペア:

[(1, 20479160), (2, 10239580), (4, 5119790), (5, 4095832), (8, 2559895), (10, 2047916), (13, 1575320), (20, 1023958), (26, 787660), (40, 511979), (52, 393830), (65, 315064), (104, 196915), (130, 157532), (260, 78766), (520, 39383)]