20178847616

素因数分解:

$2^7\times {\mathrm{157647247}}^1$

素因数の和:157647261

約数の個数: 16

約数和(自身を含む): 40200048240

約数和(自身を除く): 20021200624

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 157647247, 315294494, 630588988, 1261177976, 2522355952, 5044711904, 10089423808, 20178847616]

約数ペア:

[(1, 20178847616), (2, 10089423808), (4, 5044711904), (8, 2522355952), (16, 1261177976), (32, 630588988), (64, 315294494), (128, 157647247)]