858651820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{254039}}^1$

素因数の和:254074

約数の個数: 36

約数和(自身を含む): 1952551440

約数和(自身を除く): 1093899620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 254039, 508078, 1016156, 1270195, 2540390, 3302507, 5080780, 6605014, 13210028, 16512535, 33025070, 42932591, 66050140, 85865182, 171730364, 214662955, 429325910, 858651820]

約数ペア:

[(1, 858651820), (2, 429325910), (4, 214662955), (5, 171730364), (10, 85865182), (13, 66050140), (20, 42932591), (26, 33025070), (52, 16512535), (65, 13210028), (130, 6605014), (169, 5080780), (260, 3302507), (338, 2540390), (676, 1270195), (845, 1016156), (1690, 508078), (3380, 254039)]