20814256

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1297}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 43457040

約数和(自身を除く): 22642784

約数列:

[1, 2, 4, 8, 16, 17, 34, 59, 68, 118, 136, 236, 272, 472, 944, 1003, 1297, 2006, 2594, 4012, 5188, 8024, 10376, 16048, 20752, 22049, 44098, 76523, 88196, 153046, 176392, 306092, 352784, 612184, 1224368, 1300891, 2601782, 5203564, 10407128, 20814256]

約数ペア:

[(1, 20814256), (2, 10407128), (4, 5203564), (8, 2601782), (16, 1300891), (17, 1224368), (34, 612184), (59, 352784), (68, 306092), (118, 176392), (136, 153046), (236, 88196), (272, 76523), (472, 44098), (944, 22049), (1003, 20752), (1297, 16048), (2006, 10376), (2594, 8024), (4012, 5188)]