31406440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60397}}^1$

素因数の和:60421

約数の個数: 32

約数和(自身を含む): 76101480

約数和(自身を除く): 44695040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60397, 120794, 241588, 301985, 483176, 603970, 785161, 1207940, 1570322, 2415880, 3140644, 3925805, 6281288, 7851610, 15703220, 31406440]

約数ペア:

[(1, 31406440), (2, 15703220), (4, 7851610), (5, 6281288), (8, 3925805), (10, 3140644), (13, 2415880), (20, 1570322), (26, 1207940), (40, 785161), (52, 603970), (65, 483176), (104, 301985), (130, 241588), (260, 120794), (520, 60397)]