2019489940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2777}}^1\times {\mathrm{2797}}^1$

素因数の和:5596

約数の個数: 48

約数和(自身を含む): 4570432272

約数和(自身を除く): 2550942332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2777, 2797, 5554, 5594, 11108, 11188, 13885, 13985, 27770, 27970, 36101, 36361, 55540, 55940, 72202, 72722, 144404, 145444, 180505, 181805, 361010, 363610, 722020, 727220, 7767269, 15534538, 31069076, 38836345, 77672690, 100974497, 155345380, 201948994, 403897988, 504872485, 1009744970, 2019489940]

約数ペア:

[(1, 2019489940), (2, 1009744970), (4, 504872485), (5, 403897988), (10, 201948994), (13, 155345380), (20, 100974497), (26, 77672690), (52, 38836345), (65, 31069076), (130, 15534538), (260, 7767269), (2777, 727220), (2797, 722020), (5554, 363610), (5594, 361010), (11108, 181805), (11188, 180505), (13885, 145444), (13985, 144404), (27770, 72722), (27970, 72202), (36101, 55940), (36361, 55540)]