208543020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{797}}^1$

素因数の和:912

約数の個数: 144

約数和(自身を含む): 687748320

約数和(自身を除く): 479205300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 89, 98, 105, 140, 147, 178, 196, 210, 245, 267, 294, 356, 420, 445, 490, 534, 588, 623, 735, 797, 890, 980, 1068, 1246, 1335, 1470, 1594, 1780, 1869, 2391, 2492, 2670, 2940, 3115, 3188, 3738, 3985, 4361, 4782, 5340, 5579, 6230, 7476, 7970, 8722, 9345, 9564, 11158, 11955, 12460, 13083, 15940, 16737, 17444, 18690, 21805, 22316, 23910, 26166, 27895, 33474, 37380, 39053, 43610, 47820, 52332, 55790, 65415, 66948, 70933, 78106, 83685, 87220, 111580, 117159, 130830, 141866, 156212, 167370, 195265, 212799, 234318, 261660, 283732, 334740, 354665, 390530, 425598, 468636, 496531, 585795, 709330, 781060, 851196, 993062, 1063995, 1171590, 1418660, 1489593, 1986124, 2127990, 2343180, 2482655, 2979186, 3475717, 4255980, 4965310, 5958372, 6951434, 7447965, 9930620, 10427151, 13902868, 14895930, 17378585, 20854302, 29791860, 34757170, 41708604, 52135755, 69514340, 104271510, 208543020]

約数ペア:

[(1, 208543020), (2, 104271510), (3, 69514340), (4, 52135755), (5, 41708604), (6, 34757170), (7, 29791860), (10, 20854302), (12, 17378585), (14, 14895930), (15, 13902868), (20, 10427151), (21, 9930620), (28, 7447965), (30, 6951434), (35, 5958372), (42, 4965310), (49, 4255980), (60, 3475717), (70, 2979186), (84, 2482655), (89, 2343180), (98, 2127990), (105, 1986124), (140, 1489593), (147, 1418660), (178, 1171590), (196, 1063995), (210, 993062), (245, 851196), (267, 781060), (294, 709330), (356, 585795), (420, 496531), (445, 468636), (490, 425598), (534, 390530), (588, 354665), (623, 334740), (735, 283732), (797, 261660), (890, 234318), (980, 212799), (1068, 195265), (1246, 167370), (1335, 156212), (1470, 141866), (1594, 130830), (1780, 117159), (1869, 111580), (2391, 87220), (2492, 83685), (2670, 78106), (2940, 70933), (3115, 66948), (3188, 65415), (3738, 55790), (3985, 52332), (4361, 47820), (4782, 43610), (5340, 39053), (5579, 37380), (6230, 33474), (7476, 27895), (7970, 26166), (8722, 23910), (9345, 22316), (9564, 21805), (11158, 18690), (11955, 17444), (12460, 16737), (13083, 15940)]