19540340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 43327872

約数和(自身を除く): 23787532

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 107, 115, 214, 230, 397, 428, 460, 535, 794, 1070, 1588, 1985, 2140, 2461, 3970, 4922, 7940, 9131, 9844, 12305, 18262, 24610, 36524, 42479, 45655, 49220, 84958, 91310, 169916, 182620, 212395, 424790, 849580, 977017, 1954034, 3908068, 4885085, 9770170, 19540340]

約数ペア:

[(1, 19540340), (2, 9770170), (4, 4885085), (5, 3908068), (10, 1954034), (20, 977017), (23, 849580), (46, 424790), (92, 212395), (107, 182620), (115, 169916), (214, 91310), (230, 84958), (397, 49220), (428, 45655), (460, 42479), (535, 36524), (794, 24610), (1070, 18262), (1588, 12305), (1985, 9844), (2140, 9131), (2461, 7940), (3970, 4922)]