129679940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{26251}}^1$

素因数の和:26292

約数の個数: 48

約数和(自身を含む): 308723520

約数和(自身を除く): 179043580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 26251, 52502, 105004, 131255, 262510, 341263, 498769, 525020, 682526, 997538, 1365052, 1706315, 1995076, 2493845, 3412630, 4987690, 6483997, 6825260, 9975380, 12967994, 25935988, 32419985, 64839970, 129679940]

約数ペア:

[(1, 129679940), (2, 64839970), (4, 32419985), (5, 25935988), (10, 12967994), (13, 9975380), (19, 6825260), (20, 6483997), (26, 4987690), (38, 3412630), (52, 2493845), (65, 1995076), (76, 1706315), (95, 1365052), (130, 997538), (190, 682526), (247, 525020), (260, 498769), (380, 341263), (494, 262510), (988, 131255), (1235, 105004), (2470, 52502), (4940, 26251)]