19800850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{1097}}^1$

素因数の和:1147

約数の個数: 36

約数和(自身を含む): 38905434

約数和(自身を除く): 19104584

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 361, 475, 722, 950, 1097, 1805, 2194, 3610, 5485, 9025, 10970, 18050, 20843, 27425, 41686, 54850, 104215, 208430, 396017, 521075, 792034, 1042150, 1980085, 3960170, 9900425, 19800850]

約数ペア:

[(1, 19800850), (2, 9900425), (5, 3960170), (10, 1980085), (19, 1042150), (25, 792034), (38, 521075), (50, 396017), (95, 208430), (190, 104215), (361, 54850), (475, 41686), (722, 27425), (950, 20843), (1097, 18050), (1805, 10970), (2194, 9025), (3610, 5485)]