9980890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 19103040

約数和(自身を除く): 9122150

約数列:

[1, 2, 5, 10, 19, 38, 95, 131, 190, 262, 401, 655, 802, 1310, 2005, 2489, 4010, 4978, 7619, 12445, 15238, 24890, 38095, 52531, 76190, 105062, 262655, 525310, 998089, 1996178, 4990445, 9980890]

約数ペア:

[(1, 9980890), (2, 4990445), (5, 1996178), (10, 998089), (19, 525310), (38, 262655), (95, 105062), (131, 76190), (190, 52531), (262, 38095), (401, 24890), (655, 15238), (802, 12445), (1310, 7619), (2005, 4978), (2489, 4010)]