81200120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{88261}}^1$

素因数の和:88295

約数の個数: 32

約数和(自身を含む): 190645920

約数和(自身を除く): 109445800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 88261, 176522, 353044, 441305, 706088, 882610, 1765220, 2030003, 3530440, 4060006, 8120012, 10150015, 16240024, 20300030, 40600060, 81200120]

約数ペア:

[(1, 81200120), (2, 40600060), (4, 20300030), (5, 16240024), (8, 10150015), (10, 8120012), (20, 4060006), (23, 3530440), (40, 2030003), (46, 1765220), (92, 882610), (115, 706088), (184, 441305), (230, 353044), (460, 176522), (920, 88261)]