201815980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{77029}}^1$

素因数の和:77169

約数の個数: 24

約数和(自身を含む): 427054320

約数和(自身を除く): 225238340

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 77029, 154058, 308116, 385145, 770290, 1540580, 10090799, 20181598, 40363196, 50453995, 100907990, 201815980]

約数ペア:

[(1, 201815980), (2, 100907990), (4, 50453995), (5, 40363196), (10, 20181598), (20, 10090799), (131, 1540580), (262, 770290), (524, 385145), (655, 308116), (1310, 154058), (2620, 77029)]