16662940

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{347}}^1$

素因数の和:384

約数の個数: 60

約数和(自身を含む): 40939416

約数和(自身を除く): 24276476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 347, 490, 686, 694, 980, 1372, 1388, 1715, 1735, 2401, 2429, 3430, 3470, 4802, 4858, 6860, 6940, 9604, 9716, 12005, 12145, 17003, 24010, 24290, 34006, 48020, 48580, 68012, 85015, 119021, 170030, 238042, 340060, 476084, 595105, 833147, 1190210, 1666294, 2380420, 3332588, 4165735, 8331470, 16662940]

約数ペア:

[(1, 16662940), (2, 8331470), (4, 4165735), (5, 3332588), (7, 2380420), (10, 1666294), (14, 1190210), (20, 833147), (28, 595105), (35, 476084), (49, 340060), (70, 238042), (98, 170030), (140, 119021), (196, 85015), (245, 68012), (343, 48580), (347, 48020), (490, 34006), (686, 24290), (694, 24010), (980, 17003), (1372, 12145), (1388, 12005), (1715, 9716), (1735, 9604), (2401, 6940), (2429, 6860), (3430, 4858), (3470, 4802)]