218140240

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{12923}}^1$

素因数の和:13147

約数の個数: 40

約数和(自身を含む): 509619168

約数和(自身を除く): 291478928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 8440, 12923, 16880, 25846, 51692, 64615, 103384, 129230, 206768, 258460, 516920, 1033840, 2726753, 5453506, 10907012, 13633765, 21814024, 27267530, 43628048, 54535060, 109070120, 218140240]

約数ペア:

[(1, 218140240), (2, 109070120), (4, 54535060), (5, 43628048), (8, 27267530), (10, 21814024), (16, 13633765), (20, 10907012), (40, 5453506), (80, 2726753), (211, 1033840), (422, 516920), (844, 258460), (1055, 206768), (1688, 129230), (2110, 103384), (3376, 64615), (4220, 51692), (8440, 25846), (12923, 16880)]