30321460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 69148800

約数和(自身を除く): 38827340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 839, 1390, 1678, 1807, 2780, 3356, 3614, 4195, 7228, 8390, 9035, 10907, 16780, 18070, 21814, 36140, 43628, 54535, 109070, 116621, 218140, 233242, 466484, 583105, 1166210, 1516073, 2332420, 3032146, 6064292, 7580365, 15160730, 30321460]

約数ペア:

[(1, 30321460), (2, 15160730), (4, 7580365), (5, 6064292), (10, 3032146), (13, 2332420), (20, 1516073), (26, 1166210), (52, 583105), (65, 466484), (130, 233242), (139, 218140), (260, 116621), (278, 109070), (556, 54535), (695, 43628), (839, 36140), (1390, 21814), (1678, 18070), (1807, 16780), (2780, 10907), (3356, 9035), (3614, 8390), (4195, 7228)]