20653203452

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{389}}^1$

素因数の和:748

約数の個数: 144

約数和(自身を含む): 45375876000

約数和(自身を除く): 24722672548

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 53, 76, 98, 106, 133, 196, 212, 266, 269, 371, 389, 532, 538, 742, 778, 931, 1007, 1076, 1484, 1556, 1862, 1883, 2014, 2597, 2723, 3724, 3766, 4028, 5111, 5194, 5446, 7049, 7391, 7532, 10222, 10388, 10892, 13181, 14098, 14257, 14782, 19061, 20444, 20617, 26362, 28196, 28514, 29564, 35777, 38122, 41234, 49343, 51737, 52724, 57028, 71554, 76244, 82468, 98686, 99799, 103474, 104641, 143108, 144319, 197372, 199598, 206948, 209282, 250439, 270883, 288638, 362159, 391723, 399196, 418564, 500878, 541766, 577276, 698593, 724318, 732487, 783446, 1001756, 1010233, 1083532, 1397186, 1448636, 1464974, 1566892, 1896181, 1988179, 2020466, 2742061, 2794372, 2929948, 3792362, 3976358, 4040932, 5127409, 5484122, 5545973, 7584724, 7952716, 10254818, 10968244, 11091946, 13273267, 13917253, 19194427, 20509636, 22183892, 26546534, 27834506, 38388854, 38821811, 53093068, 55669012, 76777708, 77643622, 97420771, 105373487, 155287244, 194841542, 210746974, 271752677, 389683084, 421493948, 543505354, 737614409, 1087010708, 1475228818, 2950457636, 5163300863, 10326601726, 20653203452]

約数ペア:

[(1, 20653203452), (2, 10326601726), (4, 5163300863), (7, 2950457636), (14, 1475228818), (19, 1087010708), (28, 737614409), (38, 543505354), (49, 421493948), (53, 389683084), (76, 271752677), (98, 210746974), (106, 194841542), (133, 155287244), (196, 105373487), (212, 97420771), (266, 77643622), (269, 76777708), (371, 55669012), (389, 53093068), (532, 38821811), (538, 38388854), (742, 27834506), (778, 26546534), (931, 22183892), (1007, 20509636), (1076, 19194427), (1484, 13917253), (1556, 13273267), (1862, 11091946), (1883, 10968244), (2014, 10254818), (2597, 7952716), (2723, 7584724), (3724, 5545973), (3766, 5484122), (4028, 5127409), (5111, 4040932), (5194, 3976358), (5446, 3792362), (7049, 2929948), (7391, 2794372), (7532, 2742061), (10222, 2020466), (10388, 1988179), (10892, 1896181), (13181, 1566892), (14098, 1464974), (14257, 1448636), (14782, 1397186), (19061, 1083532), (20444, 1010233), (20617, 1001756), (26362, 783446), (28196, 732487), (28514, 724318), (29564, 698593), (35777, 577276), (38122, 541766), (41234, 500878), (49343, 418564), (51737, 399196), (52724, 391723), (57028, 362159), (71554, 288638), (76244, 270883), (82468, 250439), (98686, 209282), (99799, 206948), (103474, 199598), (104641, 197372), (143108, 144319)]