8442850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 17498880

約数和(自身を除く): 9056030

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 419, 650, 775, 806, 838, 1550, 2015, 2095, 4030, 4190, 5447, 10075, 10475, 10894, 12989, 20150, 20950, 25978, 27235, 54470, 64945, 129890, 136175, 168857, 272350, 324725, 337714, 649450, 844285, 1688570, 4221425, 8442850]

約数ペア:

[(1, 8442850), (2, 4221425), (5, 1688570), (10, 844285), (13, 649450), (25, 337714), (26, 324725), (31, 272350), (50, 168857), (62, 136175), (65, 129890), (130, 64945), (155, 54470), (310, 27235), (325, 25978), (403, 20950), (419, 20150), (650, 12989), (775, 10894), (806, 10475), (838, 10075), (1550, 5447), (2015, 4190), (2095, 4030)]