20722380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49339}}^1$

素因数の和:49358

約数の個数: 48

約数和(自身を含む): 66312960

約数和(自身を除く): 45590580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49339, 98678, 148017, 197356, 246695, 296034, 345373, 493390, 592068, 690746, 740085, 986780, 1036119, 1381492, 1480170, 1726865, 2072238, 2960340, 3453730, 4144476, 5180595, 6907460, 10361190, 20722380]

約数ペア:

[(1, 20722380), (2, 10361190), (3, 6907460), (4, 5180595), (5, 4144476), (6, 3453730), (7, 2960340), (10, 2072238), (12, 1726865), (14, 1480170), (15, 1381492), (20, 1036119), (21, 986780), (28, 740085), (30, 690746), (35, 592068), (42, 493390), (60, 345373), (70, 296034), (84, 246695), (105, 197356), (140, 148017), (210, 98678), (420, 49339)]