208243420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:704

約数の個数: 144

約数和(自身を含む): 579156480

約数和(自身を除く): 370913060

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 121, 133, 140, 154, 190, 209, 220, 242, 266, 308, 380, 385, 418, 484, 532, 605, 647, 665, 770, 836, 847, 1045, 1210, 1294, 1330, 1463, 1540, 1694, 2090, 2299, 2420, 2588, 2660, 2926, 3235, 3388, 4180, 4235, 4529, 4598, 5852, 6470, 7117, 7315, 8470, 9058, 9196, 11495, 12293, 12940, 14234, 14630, 16093, 16940, 18116, 22645, 22990, 24586, 28468, 29260, 32186, 35585, 45290, 45980, 49172, 49819, 61465, 64372, 71170, 78287, 80465, 86051, 90580, 99638, 122930, 135223, 142340, 156574, 160930, 172102, 199276, 245860, 249095, 270446, 313148, 321860, 344204, 391435, 430255, 498190, 540892, 548009, 676115, 782870, 860510, 946561, 996380, 1096018, 1352230, 1487453, 1565740, 1721020, 1893122, 2192036, 2704460, 2740045, 2974906, 3786244, 4732805, 5480090, 5949812, 7437265, 9465610, 10412171, 10960180, 14874530, 18931220, 20824342, 29749060, 41648684, 52060855, 104121710, 208243420]

約数ペア:

[(1, 208243420), (2, 104121710), (4, 52060855), (5, 41648684), (7, 29749060), (10, 20824342), (11, 18931220), (14, 14874530), (19, 10960180), (20, 10412171), (22, 9465610), (28, 7437265), (35, 5949812), (38, 5480090), (44, 4732805), (55, 3786244), (70, 2974906), (76, 2740045), (77, 2704460), (95, 2192036), (110, 1893122), (121, 1721020), (133, 1565740), (140, 1487453), (154, 1352230), (190, 1096018), (209, 996380), (220, 946561), (242, 860510), (266, 782870), (308, 676115), (380, 548009), (385, 540892), (418, 498190), (484, 430255), (532, 391435), (605, 344204), (647, 321860), (665, 313148), (770, 270446), (836, 249095), (847, 245860), (1045, 199276), (1210, 172102), (1294, 160930), (1330, 156574), (1463, 142340), (1540, 135223), (1694, 122930), (2090, 99638), (2299, 90580), (2420, 86051), (2588, 80465), (2660, 78287), (2926, 71170), (3235, 64372), (3388, 61465), (4180, 49819), (4235, 49172), (4529, 45980), (4598, 45290), (5852, 35585), (6470, 32186), (7117, 29260), (7315, 28468), (8470, 24586), (9058, 22990), (9196, 22645), (11495, 18116), (12293, 16940), (12940, 16093), (14234, 14630)]