20403180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16193}}^1$

素因数の和:16215

約数の個数: 72

約数和(自身を含む): 70735392

約数和(自身を除く): 50332212

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16193, 32386, 48579, 64772, 80965, 97158, 113351, 145737, 161930, 194316, 226702, 242895, 291474, 323860, 340053, 453404, 485790, 566755, 582948, 680106, 728685, 971580, 1020159, 1133510, 1360212, 1457370, 1700265, 2040318, 2267020, 2914740, 3400530, 4080636, 5100795, 6801060, 10201590, 20403180]

約数ペア:

[(1, 20403180), (2, 10201590), (3, 6801060), (4, 5100795), (5, 4080636), (6, 3400530), (7, 2914740), (9, 2267020), (10, 2040318), (12, 1700265), (14, 1457370), (15, 1360212), (18, 1133510), (20, 1020159), (21, 971580), (28, 728685), (30, 680106), (35, 582948), (36, 566755), (42, 485790), (45, 453404), (60, 340053), (63, 323860), (70, 291474), (84, 242895), (90, 226702), (105, 194316), (126, 161930), (140, 145737), (180, 113351), (210, 97158), (252, 80965), (315, 64772), (420, 48579), (630, 32386), (1260, 16193)]