123931820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{643}}^1$

素因数の和:1094

約数の個数: 48

約数和(自身を含む): 272643840

約数和(自身を除く): 148712020

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 419, 460, 643, 838, 1286, 1676, 2095, 2572, 3215, 4190, 6430, 8380, 9637, 12860, 14789, 19274, 29578, 38548, 48185, 59156, 73945, 96370, 147890, 192740, 269417, 295780, 538834, 1077668, 1347085, 2694170, 5388340, 6196591, 12393182, 24786364, 30982955, 61965910, 123931820]

約数ペア:

[(1, 123931820), (2, 61965910), (4, 30982955), (5, 24786364), (10, 12393182), (20, 6196591), (23, 5388340), (46, 2694170), (92, 1347085), (115, 1077668), (230, 538834), (419, 295780), (460, 269417), (643, 192740), (838, 147890), (1286, 96370), (1676, 73945), (2095, 59156), (2572, 48185), (3215, 38548), (4190, 29578), (6430, 19274), (8380, 14789), (9637, 12860)]