28531880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54869}}^1$

素因数の和:54893

約数の個数: 32

約数和(自身を含む): 69136200

約数和(自身を除く): 40604320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54869, 109738, 219476, 274345, 438952, 548690, 713297, 1097380, 1426594, 2194760, 2853188, 3566485, 5706376, 7132970, 14265940, 28531880]

約数ペア:

[(1, 28531880), (2, 14265940), (4, 7132970), (5, 5706376), (8, 3566485), (10, 2853188), (13, 2194760), (20, 1426594), (26, 1097380), (40, 713297), (52, 548690), (65, 438952), (104, 274345), (130, 219476), (260, 109738), (520, 54869)]