31300520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21149}}^1$

素因数の和:21197

約数の個数: 32

約数和(自身を含む): 72333000

約数和(自身を除く): 41032480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 21149, 42298, 84596, 105745, 169192, 211490, 422980, 782513, 845960, 1565026, 3130052, 3912565, 6260104, 7825130, 15650260, 31300520]

約数ペア:

[(1, 31300520), (2, 15650260), (4, 7825130), (5, 6260104), (8, 3912565), (10, 3130052), (20, 1565026), (37, 845960), (40, 782513), (74, 422980), (148, 211490), (185, 169192), (296, 105745), (370, 84596), (740, 42298), (1480, 21149)]