2009755780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{22129}}^1$

素因数の和:22396

約数の個数: 48

約数和(自身を含む): 4461408000

約数和(自身を除く): 2451652220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 239, 380, 478, 956, 1195, 2390, 4541, 4780, 9082, 18164, 22129, 22705, 44258, 45410, 88516, 90820, 110645, 221290, 420451, 442580, 840902, 1681804, 2102255, 4204510, 5288831, 8409020, 10577662, 21155324, 26444155, 52888310, 100487789, 105776620, 200975578, 401951156, 502438945, 1004877890, 2009755780]

約数ペア:

[(1, 2009755780), (2, 1004877890), (4, 502438945), (5, 401951156), (10, 200975578), (19, 105776620), (20, 100487789), (38, 52888310), (76, 26444155), (95, 21155324), (190, 10577662), (239, 8409020), (380, 5288831), (478, 4204510), (956, 2102255), (1195, 1681804), (2390, 840902), (4541, 442580), (4780, 420451), (9082, 221290), (18164, 110645), (22129, 90820), (22705, 88516), (44258, 45410)]