20638730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5563}}^1$

素因数の和:5630

約数の個数: 32

約数和(自身を含む): 43265664

約数和(自身を除く): 22626934

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5563, 11126, 27815, 38941, 55630, 77882, 194705, 294839, 389410, 589678, 1474195, 2063873, 2948390, 4127746, 10319365, 20638730]

約数ペア:

[(1, 20638730), (2, 10319365), (5, 4127746), (7, 2948390), (10, 2063873), (14, 1474195), (35, 589678), (53, 389410), (70, 294839), (106, 194705), (265, 77882), (371, 55630), (530, 38941), (742, 27815), (1855, 11126), (3710, 5563)]