20801340

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5503}}^1$

素因数の和:5528

約数の個数: 96

約数和(自身を含む): 73973760

約数和(自身を除く): 53172420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5503, 11006, 16509, 22012, 27515, 33018, 38521, 49527, 55030, 66036, 77042, 82545, 99054, 110060, 115563, 148581, 154084, 165090, 192605, 198108, 231126, 247635, 297162, 330180, 346689, 385210, 462252, 495270, 577815, 594324, 693378, 742905, 770420, 990540, 1040067, 1155630, 1386756, 1485810, 1733445, 2080134, 2311260, 2971620, 3466890, 4160268, 5200335, 6933780, 10400670, 20801340]

約数ペア:

[(1, 20801340), (2, 10400670), (3, 6933780), (4, 5200335), (5, 4160268), (6, 3466890), (7, 2971620), (9, 2311260), (10, 2080134), (12, 1733445), (14, 1485810), (15, 1386756), (18, 1155630), (20, 1040067), (21, 990540), (27, 770420), (28, 742905), (30, 693378), (35, 594324), (36, 577815), (42, 495270), (45, 462252), (54, 385210), (60, 346689), (63, 330180), (70, 297162), (84, 247635), (90, 231126), (105, 198108), (108, 192605), (126, 165090), (135, 154084), (140, 148581), (180, 115563), (189, 110060), (210, 99054), (252, 82545), (270, 77042), (315, 66036), (378, 55030), (420, 49527), (540, 38521), (630, 33018), (756, 27515), (945, 22012), (1260, 16509), (1890, 11006), (3780, 5503)]