221087020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20509}}^1$

素因数の和:20543

約数の個数: 72

約数和(自身を含む): 589211280

約数和(自身を除く): 368124260

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 20509, 41018, 82036, 102545, 143563, 205090, 225599, 287126, 410180, 451198, 574252, 717815, 902396, 1004941, 1127995, 1435630, 1579193, 2009882, 2255990, 2871260, 3158386, 4019764, 4511980, 5024705, 6316772, 7895965, 10049410, 11054351, 15791930, 20098820, 22108702, 31583860, 44217404, 55271755, 110543510, 221087020]

約数ペア:

[(1, 221087020), (2, 110543510), (4, 55271755), (5, 44217404), (7, 31583860), (10, 22108702), (11, 20098820), (14, 15791930), (20, 11054351), (22, 10049410), (28, 7895965), (35, 6316772), (44, 5024705), (49, 4511980), (55, 4019764), (70, 3158386), (77, 2871260), (98, 2255990), (110, 2009882), (140, 1579193), (154, 1435630), (196, 1127995), (220, 1004941), (245, 902396), (308, 717815), (385, 574252), (490, 451198), (539, 410180), (770, 287126), (980, 225599), (1078, 205090), (1540, 143563), (2156, 102545), (2695, 82036), (5390, 41018), (10780, 20509)]