204920492780

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1\times {\mathrm{313}}^1\times {\mathrm{607}}^1$

素因数の和:1399

約数の個数: 96

約数和(自身を含む): 436195737600

約数和(自身を除く): 231275244820

約数列:

[1, 2, 4, 5, 10, 20, 199, 271, 313, 398, 542, 607, 626, 796, 995, 1084, 1214, 1252, 1355, 1565, 1990, 2428, 2710, 3035, 3130, 3980, 5420, 6070, 6260, 12140, 53929, 62287, 84823, 107858, 120793, 124574, 164497, 169646, 189991, 215716, 241586, 249148, 269645, 311435, 328994, 339292, 379982, 424115, 483172, 539290, 603965, 622870, 657988, 759964, 822485, 848230, 949955, 1078580, 1207930, 1245740, 1644970, 1696460, 1899910, 2415860, 3289940, 3799820, 16879777, 32734903, 33759554, 37808209, 51487561, 65469806, 67519108, 75616418, 84398885, 102975122, 130939612, 151232836, 163674515, 168797770, 189041045, 205950244, 257437805, 327349030, 337595540, 378082090, 514875610, 654698060, 756164180, 1029751220, 10246024639, 20492049278, 40984098556, 51230123195, 102460246390, 204920492780]

約数ペア:

[(1, 204920492780), (2, 102460246390), (4, 51230123195), (5, 40984098556), (10, 20492049278), (20, 10246024639), (199, 1029751220), (271, 756164180), (313, 654698060), (398, 514875610), (542, 378082090), (607, 337595540), (626, 327349030), (796, 257437805), (995, 205950244), (1084, 189041045), (1214, 168797770), (1252, 163674515), (1355, 151232836), (1565, 130939612), (1990, 102975122), (2428, 84398885), (2710, 75616418), (3035, 67519108), (3130, 65469806), (3980, 51487561), (5420, 37808209), (6070, 33759554), (6260, 32734903), (12140, 16879777), (53929, 3799820), (62287, 3289940), (84823, 2415860), (107858, 1899910), (120793, 1696460), (124574, 1644970), (164497, 1245740), (169646, 1207930), (189991, 1078580), (215716, 949955), (241586, 848230), (249148, 822485), (269645, 759964), (311435, 657988), (328994, 622870), (339292, 603965), (379982, 539290), (424115, 483172)]