28958878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 48888000

約数和(自身を除く): 19929122

約数列:

[1, 2, 13, 26, 29, 58, 193, 199, 377, 386, 398, 754, 2509, 2587, 5018, 5174, 5597, 5771, 11194, 11542, 38407, 72761, 75023, 76814, 145522, 150046, 499291, 998582, 1113803, 2227606, 14479439, 28958878]

約数ペア:

[(1, 28958878), (2, 14479439), (13, 2227606), (26, 1113803), (29, 998582), (58, 499291), (193, 150046), (199, 145522), (377, 76814), (386, 75023), (398, 72761), (754, 38407), (2509, 11542), (2587, 11194), (5018, 5771), (5174, 5597)]