20370280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{547}}^1$

素因数の和:591

約数の個数: 96

約数和(自身を含む): 56224800

約数和(自身を除く): 35854520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 532, 547, 665, 760, 931, 980, 1064, 1094, 1330, 1862, 1960, 2188, 2660, 2735, 3724, 3829, 4376, 4655, 5320, 5470, 7448, 7658, 9310, 10393, 10940, 15316, 18620, 19145, 20786, 21880, 26803, 30632, 37240, 38290, 41572, 51965, 53606, 72751, 76580, 83144, 103930, 107212, 134015, 145502, 153160, 207860, 214424, 268030, 291004, 363755, 415720, 509257, 536060, 582008, 727510, 1018514, 1072120, 1455020, 2037028, 2546285, 2910040, 4074056, 5092570, 10185140, 20370280]

約数ペア:

[(1, 20370280), (2, 10185140), (4, 5092570), (5, 4074056), (7, 2910040), (8, 2546285), (10, 2037028), (14, 1455020), (19, 1072120), (20, 1018514), (28, 727510), (35, 582008), (38, 536060), (40, 509257), (49, 415720), (56, 363755), (70, 291004), (76, 268030), (95, 214424), (98, 207860), (133, 153160), (140, 145502), (152, 134015), (190, 107212), (196, 103930), (245, 83144), (266, 76580), (280, 72751), (380, 53606), (392, 51965), (490, 41572), (532, 38290), (547, 37240), (665, 30632), (760, 26803), (931, 21880), (980, 20786), (1064, 19145), (1094, 18620), (1330, 15316), (1862, 10940), (1960, 10393), (2188, 9310), (2660, 7658), (2735, 7448), (3724, 5470), (3829, 5320), (4376, 4655)]