2013138520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{689431}}^1$

素因数の和:689515

約数の個数: 32

約数和(自身を含む): 4591617120

約数和(自身を除く): 2578478600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 689431, 1378862, 2757724, 3447155, 5515448, 6894310, 13788620, 27577240, 50328463, 100656926, 201313852, 251642315, 402627704, 503284630, 1006569260, 2013138520]

約数ペア:

[(1, 2013138520), (2, 1006569260), (4, 503284630), (5, 402627704), (8, 251642315), (10, 201313852), (20, 100656926), (40, 50328463), (73, 27577240), (146, 13788620), (292, 6894310), (365, 5515448), (584, 3447155), (730, 2757724), (1460, 1378862), (2920, 689431)]