20433380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{709}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 47234880

約数和(自身を除く): 26801500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 655, 709, 1310, 1418, 1441, 2620, 2836, 2882, 3545, 5764, 7090, 7205, 7799, 14180, 14410, 15598, 28820, 31196, 38995, 77990, 92879, 155980, 185758, 371516, 464395, 928790, 1021669, 1857580, 2043338, 4086676, 5108345, 10216690, 20433380]

約数ペア:

[(1, 20433380), (2, 10216690), (4, 5108345), (5, 4086676), (10, 2043338), (11, 1857580), (20, 1021669), (22, 928790), (44, 464395), (55, 371516), (110, 185758), (131, 155980), (220, 92879), (262, 77990), (524, 38995), (655, 31196), (709, 28820), (1310, 15598), (1418, 14410), (1441, 14180), (2620, 7799), (2836, 7205), (2882, 7090), (3545, 5764)]