20455775420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{140281}}^1$

素因数の和:140630

約数の個数: 48

約数和(自身を含む): 44966553408

約数和(自身を除く): 24510777988

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 317, 460, 634, 1268, 1585, 3170, 6340, 7291, 14582, 29164, 36455, 72910, 140281, 145820, 280562, 561124, 701405, 1402810, 2805620, 3226463, 6452926, 12905852, 16132315, 32264630, 44469077, 64529260, 88938154, 177876308, 222345385, 444690770, 889381540, 1022788771, 2045577542, 4091155084, 5113943855, 10227887710, 20455775420]

約数ペア:

[(1, 20455775420), (2, 10227887710), (4, 5113943855), (5, 4091155084), (10, 2045577542), (20, 1022788771), (23, 889381540), (46, 444690770), (92, 222345385), (115, 177876308), (230, 88938154), (317, 64529260), (460, 44469077), (634, 32264630), (1268, 16132315), (1585, 12905852), (3170, 6452926), (6340, 3226463), (7291, 2805620), (14582, 1402810), (29164, 701405), (36455, 561124), (72910, 280562), (140281, 145820)]