1281207870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{618941}}^1$

素因数の和:618977

約数の個数: 48

約数和(自身を含む): 3475978272

約数和(自身を除く): 2194770402

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 618941, 1237882, 1856823, 3094705, 3713646, 5570469, 6189410, 9284115, 11140938, 14235643, 18568230, 27852345, 28471286, 42706929, 55704690, 71178215, 85413858, 128120787, 142356430, 213534645, 256241574, 427069290, 640603935, 1281207870]

約数ペア:

[(1, 1281207870), (2, 640603935), (3, 427069290), (5, 256241574), (6, 213534645), (9, 142356430), (10, 128120787), (15, 85413858), (18, 71178215), (23, 55704690), (30, 42706929), (45, 28471286), (46, 27852345), (69, 18568230), (90, 14235643), (115, 11140938), (138, 9284115), (207, 6189410), (230, 5570469), (345, 3713646), (414, 3094705), (690, 1856823), (1035, 1237882), (2070, 618941)]