20505960

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6329}}^1$

素因数の和:6352

約数の個数: 80

約数和(自身を含む): 68933700

約数和(自身を除く): 48427740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6329, 12658, 18987, 25316, 31645, 37974, 50632, 56961, 63290, 75948, 94935, 113922, 126580, 151896, 170883, 189870, 227844, 253160, 284805, 341766, 379740, 455688, 512649, 569610, 683532, 759480, 854415, 1025298, 1139220, 1367064, 1708830, 2050596, 2278440, 2563245, 3417660, 4101192, 5126490, 6835320, 10252980, 20505960]

約数ペア:

[(1, 20505960), (2, 10252980), (3, 6835320), (4, 5126490), (5, 4101192), (6, 3417660), (8, 2563245), (9, 2278440), (10, 2050596), (12, 1708830), (15, 1367064), (18, 1139220), (20, 1025298), (24, 854415), (27, 759480), (30, 683532), (36, 569610), (40, 512649), (45, 455688), (54, 379740), (60, 341766), (72, 284805), (81, 253160), (90, 227844), (108, 189870), (120, 170883), (135, 151896), (162, 126580), (180, 113922), (216, 94935), (270, 75948), (324, 63290), (360, 56961), (405, 50632), (540, 37974), (648, 31645), (810, 25316), (1080, 18987), (1620, 12658), (3240, 6329)]