20199492712

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:635

約数の個数: 128

約数和(自身を含む): 44803756800

約数和(自身を除く): 24604264088

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 179, 193, 197, 212, 358, 371, 386, 394, 424, 716, 742, 772, 788, 1253, 1351, 1379, 1432, 1484, 1544, 1576, 2506, 2702, 2758, 2968, 5012, 5404, 5516, 9487, 10024, 10229, 10441, 10808, 11032, 18974, 20458, 20882, 34547, 35263, 37948, 38021, 40916, 41764, 66409, 69094, 70526, 71603, 73087, 75896, 76042, 81832, 83528, 132818, 138188, 141052, 143206, 146174, 152084, 241829, 246841, 265636, 266147, 276376, 282104, 286412, 292348, 304168, 483658, 493682, 531272, 532294, 572824, 584696, 967316, 987364, 1064588, 1830991, 1868939, 1934632, 1974728, 2015113, 2129176, 3661982, 3737878, 4030226, 6805759, 7323964, 7475756, 8060452, 12816937, 13082573, 13611518, 14105791, 14647928, 14951512, 16120904, 25633874, 26165146, 27223036, 28211582, 47640313, 51267748, 52330292, 54446072, 56423164, 95280626, 102535496, 104660584, 112846328, 190561252, 360705227, 381122504, 721410454, 1442820908, 2524936589, 2885641816, 5049873178, 10099746356, 20199492712]

約数ペア:

[(1, 20199492712), (2, 10099746356), (4, 5049873178), (7, 2885641816), (8, 2524936589), (14, 1442820908), (28, 721410454), (53, 381122504), (56, 360705227), (106, 190561252), (179, 112846328), (193, 104660584), (197, 102535496), (212, 95280626), (358, 56423164), (371, 54446072), (386, 52330292), (394, 51267748), (424, 47640313), (716, 28211582), (742, 27223036), (772, 26165146), (788, 25633874), (1253, 16120904), (1351, 14951512), (1379, 14647928), (1432, 14105791), (1484, 13611518), (1544, 13082573), (1576, 12816937), (2506, 8060452), (2702, 7475756), (2758, 7323964), (2968, 6805759), (5012, 4030226), (5404, 3737878), (5516, 3661982), (9487, 2129176), (10024, 2015113), (10229, 1974728), (10441, 1934632), (10808, 1868939), (11032, 1830991), (18974, 1064588), (20458, 987364), (20882, 967316), (34547, 584696), (35263, 572824), (37948, 532294), (38021, 531272), (40916, 493682), (41764, 483658), (66409, 304168), (69094, 292348), (70526, 286412), (71603, 282104), (73087, 276376), (75896, 266147), (76042, 265636), (81832, 246841), (83528, 241829), (132818, 152084), (138188, 146174), (141052, 143206)]