19995720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{166631}}^1$

素因数の和:166645

約数の個数: 32

約数和(自身を含む): 59987520

約数和(自身を除く): 39991800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 166631, 333262, 499893, 666524, 833155, 999786, 1333048, 1666310, 1999572, 2499465, 3332620, 3999144, 4998930, 6665240, 9997860, 19995720]

約数ペア:

[(1, 19995720), (2, 9997860), (3, 6665240), (4, 4998930), (5, 3999144), (6, 3332620), (8, 2499465), (10, 1999572), (12, 1666310), (15, 1333048), (20, 999786), (24, 833155), (30, 666524), (40, 499893), (60, 333262), (120, 166631)]