17809220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{479}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 44271360

約数和(自身を除く): 26462140

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 169, 220, 260, 286, 338, 479, 572, 676, 715, 845, 958, 1430, 1690, 1859, 1916, 2395, 2860, 3380, 3718, 4790, 5269, 6227, 7436, 9295, 9580, 10538, 12454, 18590, 21076, 24908, 26345, 31135, 37180, 52690, 62270, 68497, 80951, 105380, 124540, 136994, 161902, 273988, 323804, 342485, 404755, 684970, 809510, 890461, 1369940, 1619020, 1780922, 3561844, 4452305, 8904610, 17809220]

約数ペア:

[(1, 17809220), (2, 8904610), (4, 4452305), (5, 3561844), (10, 1780922), (11, 1619020), (13, 1369940), (20, 890461), (22, 809510), (26, 684970), (44, 404755), (52, 342485), (55, 323804), (65, 273988), (110, 161902), (130, 136994), (143, 124540), (169, 105380), (220, 80951), (260, 68497), (286, 62270), (338, 52690), (479, 37180), (572, 31135), (676, 26345), (715, 24908), (845, 21076), (958, 18590), (1430, 12454), (1690, 10538), (1859, 9580), (1916, 9295), (2395, 7436), (2860, 6227), (3380, 5269), (3718, 4790)]