388289990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{121721}}^1$

素因数の和:121768

約数の個数: 32

約数和(自身を含む): 788758560

約数和(自身を除く): 400468570

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 121721, 243442, 608605, 1217210, 1338931, 2677862, 3529909, 6694655, 7059818, 13389310, 17649545, 35299090, 38828999, 77657998, 194144995, 388289990]

約数ペア:

[(1, 388289990), (2, 194144995), (5, 77657998), (10, 38828999), (11, 35299090), (22, 17649545), (29, 13389310), (55, 7059818), (58, 6694655), (110, 3529909), (145, 2677862), (290, 1338931), (319, 1217210), (638, 608605), (1595, 243442), (3190, 121721)]