9819940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 22438080

約数和(自身を除く): 12618140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 179, 211, 260, 358, 422, 716, 844, 895, 1055, 1790, 2110, 2327, 2743, 3580, 4220, 4654, 5486, 9308, 10972, 11635, 13715, 23270, 27430, 37769, 46540, 54860, 75538, 151076, 188845, 377690, 490997, 755380, 981994, 1963988, 2454985, 4909970, 9819940]

約数ペア:

[(1, 9819940), (2, 4909970), (4, 2454985), (5, 1963988), (10, 981994), (13, 755380), (20, 490997), (26, 377690), (52, 188845), (65, 151076), (130, 75538), (179, 54860), (211, 46540), (260, 37769), (358, 27430), (422, 23270), (716, 13715), (844, 11635), (895, 10972), (1055, 9308), (1790, 5486), (2110, 4654), (2327, 4220), (2743, 3580)]