20536810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{739}}^1$

素因数の和:1150

約数の個数: 32

約数和(自身を含む): 42410880

約数和(自身を除く): 21874070

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 397, 739, 794, 1478, 1985, 2779, 3695, 3970, 5173, 5558, 7390, 10346, 13895, 25865, 27790, 51730, 293383, 586766, 1466915, 2053681, 2933830, 4107362, 10268405, 20536810]

約数ペア:

[(1, 20536810), (2, 10268405), (5, 4107362), (7, 2933830), (10, 2053681), (14, 1466915), (35, 586766), (70, 293383), (397, 51730), (739, 27790), (794, 25865), (1478, 13895), (1985, 10346), (2779, 7390), (3695, 5558), (3970, 5173)]