19512780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6637}}^1$

素因数の和:6663

約数の個数: 72

約数和(自身を含む): 63565488

約数和(自身を除く): 44052708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6637, 13274, 19911, 26548, 33185, 39822, 46459, 66370, 79644, 92918, 99555, 132740, 139377, 185836, 199110, 232295, 278754, 325213, 398220, 464590, 557508, 650426, 696885, 929180, 975639, 1300852, 1393770, 1626065, 1951278, 2787540, 3252130, 3902556, 4878195, 6504260, 9756390, 19512780]

約数ペア:

[(1, 19512780), (2, 9756390), (3, 6504260), (4, 4878195), (5, 3902556), (6, 3252130), (7, 2787540), (10, 1951278), (12, 1626065), (14, 1393770), (15, 1300852), (20, 975639), (21, 929180), (28, 696885), (30, 650426), (35, 557508), (42, 464590), (49, 398220), (60, 325213), (70, 278754), (84, 232295), (98, 199110), (105, 185836), (140, 139377), (147, 132740), (196, 99555), (210, 92918), (245, 79644), (294, 66370), (420, 46459), (490, 39822), (588, 33185), (735, 26548), (980, 19911), (1470, 13274), (2940, 6637)]