20131720570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1\times {\mathrm{245419}}^1$

素因数の和:246070

約数の個数: 32

約数和(自身を含む): 39086570880

約数和(自身を除く): 18954850310

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 631, 1262, 3155, 6310, 8203, 16406, 41015, 82030, 245419, 490838, 1227095, 2454190, 3190447, 6380894, 15952235, 31904470, 154859389, 309718778, 774296945, 1548593890, 2013172057, 4026344114, 10065860285, 20131720570]

約数ペア:

[(1, 20131720570), (2, 10065860285), (5, 4026344114), (10, 2013172057), (13, 1548593890), (26, 774296945), (65, 309718778), (130, 154859389), (631, 31904470), (1262, 15952235), (3155, 6380894), (6310, 3190447), (8203, 2454190), (16406, 1227095), (41015, 490838), (82030, 245419)]