19949020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 52553088

約数和(自身を除く): 32604068

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 97, 113, 130, 140, 182, 194, 226, 260, 364, 388, 452, 455, 485, 565, 679, 791, 910, 970, 1130, 1261, 1358, 1469, 1582, 1820, 1940, 2260, 2522, 2716, 2938, 3164, 3395, 3955, 5044, 5876, 6305, 6790, 7345, 7910, 8827, 10283, 10961, 12610, 13580, 14690, 15820, 17654, 20566, 21922, 25220, 29380, 35308, 41132, 43844, 44135, 51415, 54805, 76727, 88270, 102830, 109610, 142493, 153454, 176540, 205660, 219220, 284986, 306908, 383635, 569972, 712465, 767270, 997451, 1424930, 1534540, 1994902, 2849860, 3989804, 4987255, 9974510, 19949020]

約数ペア:

[(1, 19949020), (2, 9974510), (4, 4987255), (5, 3989804), (7, 2849860), (10, 1994902), (13, 1534540), (14, 1424930), (20, 997451), (26, 767270), (28, 712465), (35, 569972), (52, 383635), (65, 306908), (70, 284986), (91, 219220), (97, 205660), (113, 176540), (130, 153454), (140, 142493), (182, 109610), (194, 102830), (226, 88270), (260, 76727), (364, 54805), (388, 51415), (452, 44135), (455, 43844), (485, 41132), (565, 35308), (679, 29380), (791, 25220), (910, 21922), (970, 20566), (1130, 17654), (1261, 15820), (1358, 14690), (1469, 13580), (1582, 12610), (1820, 10961), (1940, 10283), (2260, 8827), (2522, 7910), (2716, 7345), (2938, 6790), (3164, 6305), (3395, 5876), (3955, 5044)]