20319642850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1008419}}^1$

素因数の和:1008475

約数の個数: 48

約数和(自身を含む): 42014810880

約数和(自身を除く): 21695168030

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 10075, 20150, 1008419, 2016838, 5042095, 10084190, 13109447, 25210475, 26218894, 31260989, 50420950, 62521978, 65547235, 131094470, 156304945, 312609890, 327736175, 406392857, 655472350, 781524725, 812785714, 1563049450, 2031964285, 4063928570, 10159821425, 20319642850]

約数ペア:

[(1, 20319642850), (2, 10159821425), (5, 4063928570), (10, 2031964285), (13, 1563049450), (25, 812785714), (26, 781524725), (31, 655472350), (50, 406392857), (62, 327736175), (65, 312609890), (130, 156304945), (155, 131094470), (310, 65547235), (325, 62521978), (403, 50420950), (650, 31260989), (775, 26218894), (806, 25210475), (1550, 13109447), (2015, 10084190), (4030, 5042095), (10075, 2016838), (20150, 1008419)]