20128291250

素因数分解:

$2^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{847507}}^1$

素因数の和:847548

約数の個数: 40

約数和(自身を含む): 39714224880

約数和(自身を除く): 19585933630

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 625, 950, 1250, 2375, 4750, 11875, 23750, 847507, 1695014, 4237535, 8475070, 16102633, 21187675, 32205266, 42375350, 80513165, 105938375, 161026330, 211876750, 402565825, 529691875, 805131650, 1059383750, 2012829125, 4025658250, 10064145625, 20128291250]

約数ペア:

[(1, 20128291250), (2, 10064145625), (5, 4025658250), (10, 2012829125), (19, 1059383750), (25, 805131650), (38, 529691875), (50, 402565825), (95, 211876750), (125, 161026330), (190, 105938375), (250, 80513165), (475, 42375350), (625, 32205266), (950, 21187675), (1250, 16102633), (2375, 8475070), (4750, 4237535), (11875, 1695014), (23750, 847507)]