19661640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163847}}^1$

素因数の和:163861

約数の個数: 32

約数和(自身を含む): 58985280

約数和(自身を除く): 39323640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163847, 327694, 491541, 655388, 819235, 983082, 1310776, 1638470, 1966164, 2457705, 3276940, 3932328, 4915410, 6553880, 9830820, 19661640]

約数ペア:

[(1, 19661640), (2, 9830820), (3, 6553880), (4, 4915410), (5, 3932328), (6, 3276940), (8, 2457705), (10, 1966164), (12, 1638470), (15, 1310776), (20, 983082), (24, 819235), (30, 655388), (40, 491541), (60, 327694), (120, 163847)]