20502430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6857}}^1$

素因数の和:6900

約数の個数: 32

約数和(自身を含む): 41477184

約数和(自身を除く): 20974754

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 6857, 13714, 34285, 68570, 89141, 157711, 178282, 315422, 445705, 788555, 891410, 1577110, 2050243, 4100486, 10251215, 20502430]

約数ペア:

[(1, 20502430), (2, 10251215), (5, 4100486), (10, 2050243), (13, 1577110), (23, 891410), (26, 788555), (46, 445705), (65, 315422), (115, 178282), (130, 157711), (230, 89141), (299, 68570), (598, 34285), (1495, 13714), (2990, 6857)]