1396820

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 2956128

約数和(自身を除く): 1559308

約数列:

[1, 2, 4, 5, 10, 20, 211, 331, 422, 662, 844, 1055, 1324, 1655, 2110, 3310, 4220, 6620, 69841, 139682, 279364, 349205, 698410, 1396820]

約数ペア:

[(1, 1396820), (2, 698410), (4, 349205), (5, 279364), (10, 139682), (20, 69841), (211, 6620), (331, 4220), (422, 3310), (662, 2110), (844, 1655), (1055, 1324)]