20328152

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2753}}^1$

素因数の和:2843

約数の個数: 32

約数和(自身を含む): 41640480

約数和(自身を除く): 21312328

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2753, 3692, 5506, 7384, 11012, 22024, 35789, 71578, 143156, 195463, 286312, 390926, 781852, 1563704, 2541019, 5082038, 10164076, 20328152]

約数ペア:

[(1, 20328152), (2, 10164076), (4, 5082038), (8, 2541019), (13, 1563704), (26, 781852), (52, 390926), (71, 286312), (104, 195463), (142, 143156), (284, 71578), (568, 35789), (923, 22024), (1846, 11012), (2753, 7384), (3692, 5506)]