20149397720

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1783}}^1\times {\mathrm{1871}}^1$

素因数の和:3816

約数の個数: 64

約数和(自身を含む): 45686384640

約数和(自身を除く): 25536986920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 1783, 1871, 3020, 3566, 3742, 6040, 7132, 7484, 8915, 9355, 14264, 14968, 17830, 18710, 35660, 37420, 71320, 74840, 269233, 282521, 538466, 565042, 1076932, 1130084, 1346165, 1412605, 2153864, 2260168, 2692330, 2825210, 3335993, 5384660, 5650420, 6671986, 10769320, 11300840, 13343972, 16679965, 26687944, 33359930, 66719860, 133439720, 503734943, 1007469886, 2014939772, 2518674715, 4029879544, 5037349430, 10074698860, 20149397720]

約数ペア:

[(1, 20149397720), (2, 10074698860), (4, 5037349430), (5, 4029879544), (8, 2518674715), (10, 2014939772), (20, 1007469886), (40, 503734943), (151, 133439720), (302, 66719860), (604, 33359930), (755, 26687944), (1208, 16679965), (1510, 13343972), (1783, 11300840), (1871, 10769320), (3020, 6671986), (3566, 5650420), (3742, 5384660), (6040, 3335993), (7132, 2825210), (7484, 2692330), (8915, 2260168), (9355, 2153864), (14264, 1412605), (14968, 1346165), (17830, 1130084), (18710, 1076932), (35660, 565042), (37420, 538466), (71320, 282521), (74840, 269233)]