20214220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77747}}^1$

素因数の和:77769

約数の個数: 24

約数和(自身を含む): 45715824

約数和(自身を除く): 25501604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77747, 155494, 310988, 388735, 777470, 1010711, 1554940, 2021422, 4042844, 5053555, 10107110, 20214220]

約数ペア:

[(1, 20214220), (2, 10107110), (4, 5053555), (5, 4042844), (10, 2021422), (13, 1554940), (20, 1010711), (26, 777470), (52, 388735), (65, 310988), (130, 155494), (260, 77747)]