90344020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{26729}}^1$

素因数の和:26764

約数の個数: 36

約数和(自身を含む): 205446780

約数和(自身を除く): 115102760

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 26729, 53458, 106916, 133645, 267290, 347477, 534580, 694954, 1389908, 1737385, 3474770, 4517201, 6949540, 9034402, 18068804, 22586005, 45172010, 90344020]

約数ペア:

[(1, 90344020), (2, 45172010), (4, 22586005), (5, 18068804), (10, 9034402), (13, 6949540), (20, 4517201), (26, 3474770), (52, 1737385), (65, 1389908), (130, 694954), (169, 534580), (260, 347477), (338, 267290), (676, 133645), (845, 106916), (1690, 53458), (3380, 26729)]