1298900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:464

約数の個数: 36

約数和(自身を含む): 2916480

約数和(自身を除く): 1617580

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 419, 620, 775, 838, 1550, 1676, 2095, 3100, 4190, 8380, 10475, 12989, 20950, 25978, 41900, 51956, 64945, 129890, 259780, 324725, 649450, 1298900]

約数ペア:

[(1, 1298900), (2, 649450), (4, 324725), (5, 259780), (10, 129890), (20, 64945), (25, 51956), (31, 41900), (50, 25978), (62, 20950), (100, 12989), (124, 10475), (155, 8380), (310, 4190), (419, 3100), (620, 2095), (775, 1676), (838, 1550)]